Every problem in the chapter beside the book’s answer, a chapter at a time as you scroll.
Chapter 2: The Language of Algebra
348 problems · 13 figuresBe Prepared 2.1 §2.1 source ↗
If you missed this problem, review Example 1.19.
Answer
Be Prepared 2.2 §2.1 source ↗
If you missed this problem, review Example 1.48.
Answer
Be Prepared 2.3 §2.1 source ↗
If you missed this problem, review Example 1.64.
Answer
Try It 2.1 §2.1 source ↗
Translate from algebra to words.
ⓐ
ⓑ
ⓒ
ⓓ
Answer
ⓐ 18 plus 11; the sum of eighteen and eleven
ⓑ 27 times 9; the product of twenty-seven and nine
ⓒ 84 divided by 7; the quotient of eighty-four and seven
ⓓ p minus q; the difference of p and q
Try It 2.2 §2.1 source ↗
Translate from algebra to words.
ⓐ
ⓑ
ⓒ
ⓓ
Answer
ⓐ 47 minus 19; the difference of forty-seven and nineteen
ⓑ 72 divided by 9; the quotient of seventy-two and nine
ⓒ m plus n; the sum of m and n
ⓓ 13 times 7; the product of thirteen and seven
Try It 2.3 §2.1 source ↗
Translate from algebra to words.
ⓐ
ⓑ
ⓒ
ⓓ
Answer
ⓐ fourteen is less than or equal to twenty-seven
ⓑ nineteen minus two is not equal to eight
ⓒ twelve is greater than four divided by two
ⓓ x minus seven is less than one
Try It 2.4 §2.1 source ↗
Translate from algebra to words.
ⓐ
ⓑ
ⓒ
ⓓ
Answer
ⓐ nineteen is greater than or equal to fifteen
ⓑ seven is equal to twelve minus five
ⓒ fifteen divided by three is less than eight
ⓓ y minus three is greater than six
Try It 2.5 §2.1 source ↗
Use Figure 2.2 to fill in the appropriate
ⓐ MPG of Prius_____MPG of Versa
ⓑ MPG of Mini Cooper_____ MPG of Corolla
Answer
ⓐ >
ⓑ <
Try It 2.6 §2.1 source ↗
Use Figure 2.2 to fill in the appropriate
ⓐ MPG of Fit_____ MPG of Prius
ⓑ MPG of Corolla _____ MPG of Fit
Answer
ⓐ <
ⓑ >
Try It 2.7 §2.1 source ↗
Determine if each is an expression or an equation:
ⓐ
ⓑ
Answer
ⓐ equation
ⓑ expression
Try It 2.8 §2.1 source ↗
Determine if each is an expression or an equation:
ⓐ
ⓑ
Answer
ⓐ expression
ⓑ equation
Try It 2.9 §2.1 source ↗
Write each expression in exponential form:
Answer
Try It 2.10 §2.1 source ↗
Write each expression in exponential form:
Answer
Try It 2.11 §2.1 source ↗
Write each exponential expression in expanded form:
ⓐ
ⓑ
Answer
ⓐ 4 · 4 · 4 · 4 · 4 · 4 · 4 · 4
ⓑ a · a · a · a · a · a · a
Try It 2.12 §2.1 source ↗
Write each exponential expression in expanded form:
ⓐ
ⓑ
Answer
ⓐ 8 · 8 · 8 · 8 · 8 · 8 · 8 · 8
ⓑ b · b · b · b · b · b
Try It 2.13 §2.1 source ↗
Simplify:
ⓐ
ⓑ
Answer
ⓐ 125
ⓑ 1
Try It 2.14 §2.1 source ↗
Simplify:
ⓐ
ⓑ
Answer
ⓐ 49
ⓑ 0
Try It 2.15 §2.1 source ↗
Simplify the expressions:
ⓐ
ⓑ
Answer
ⓐ 2
ⓑ 14
Try It 2.16 §2.1 source ↗
Simplify the expressions:
ⓐ
ⓑ
Answer
ⓐ 35
ⓑ 99
Try It 2.17 §2.1 source ↗
Simplify:
Answer
Try It 2.18 §2.1 source ↗
Simplify:
Answer
Try It 2.19 §2.1 source ↗
Simplify:
Answer
Try It 2.20 §2.1 source ↗
Simplify:
Answer
Try It 2.21 §2.1 source ↗
Simplify:
Answer
Try It 2.22 §2.1 source ↗
Simplify:
Answer
Try It 2.23 §2.1 source ↗
Simplify:
Answer
Try It 2.24 §2.1 source ↗
Simplify:
Answer
2.1-1 §2.1 source ↗
Use Variables and Algebraic Symbols
In the following exercises, translate from algebraic notation to words.
Answer
2.1-3 §2.1 source ↗
Use Variables and Algebraic Symbols
In the following exercises, translate from algebraic notation to words.
Answer
2.1-5 §2.1 source ↗
Use Variables and Algebraic Symbols
In the following exercises, translate from algebraic notation to words.
Answer
2.1-7 §2.1 source ↗
Use Variables and Algebraic Symbols
In the following exercises, translate from algebraic notation to words.
Answer
2.1-9 §2.1 source ↗
Use Variables and Algebraic Symbols
In the following exercises, translate from algebraic notation to words.
Answer
2.1-11 §2.1 source ↗
Use Variables and Algebraic Symbols
In the following exercises, translate from algebraic notation to words.
Answer
2.1-13 §2.1 source ↗
Use Variables and Algebraic Symbols
In the following exercises, translate from algebraic notation to words.
Answer
2.1-15 §2.1 source ↗
Use Variables and Algebraic Symbols
In the following exercises, translate from algebraic notation to words.
Answer
2.1-17 §2.1 source ↗
Use Variables and Algebraic Symbols
In the following exercises, translate from algebraic notation to words.
Answer
2.1-19 §2.1 source ↗
Use Variables and Algebraic Symbols
In the following exercises, translate from algebraic notation to words.
Answer
2.1-21 §2.1 source ↗
Use Variables and Algebraic Symbols
In the following exercises, translate from algebraic notation to words.
Answer
2.1-23 §2.1 source ↗
Identify Expressions and Equations
In the following exercises, determine if each is an expression or an equation.
Answer
2.1-25 §2.1 source ↗
Identify Expressions and Equations
In the following exercises, determine if each is an expression or an equation.
Answer
2.1-27 §2.1 source ↗
Identify Expressions and Equations
In the following exercises, determine if each is an expression or an equation.
Answer
2.1-29 §2.1 source ↗
Identify Expressions and Equations
In the following exercises, determine if each is an expression or an equation.
Answer
2.1-31 §2.1 source ↗
Simplify Expressions with Exponents
In the following exercises, write in exponential form.
Answer
2.1-33 §2.1 source ↗
Simplify Expressions with Exponents
In the following exercises, write in exponential form.
Answer
2.1-35 §2.1 source ↗
In the following exercises, write in expanded form.
Answer
2.1-37 §2.1 source ↗
In the following exercises, write in expanded form.
Answer
2.1-39 §2.1 source ↗
Simplify Expressions Using the Order of Operations
In the following exercises, simplify.
ⓐ
ⓑ
Answer
ⓐ 43
ⓑ 55
2.1-41 §2.1 source ↗
Simplify Expressions Using the Order of Operations
In the following exercises, simplify.
Answer
2.1-43 §2.1 source ↗
Simplify Expressions Using the Order of Operations
In the following exercises, simplify.
Answer
2.1-45 §2.1 source ↗
Simplify Expressions Using the Order of Operations
In the following exercises, simplify.
Answer
2.1-47 §2.1 source ↗
Simplify Expressions Using the Order of Operations
In the following exercises, simplify.
Answer
2.1-49 §2.1 source ↗
Simplify Expressions Using the Order of Operations
In the following exercises, simplify.
Answer
2.1-51 §2.1 source ↗
Simplify Expressions Using the Order of Operations
In the following exercises, simplify.
Answer
2.1-53 §2.1 source ↗
Simplify Expressions Using the Order of Operations
In the following exercises, simplify.
Answer
2.1-55 §2.1 source ↗
Simplify Expressions Using the Order of Operations
In the following exercises, simplify.
Answer
2.1-57 §2.1 source ↗
Simplify Expressions Using the Order of Operations
In the following exercises, simplify.
Answer
2.1-59 §2.1 source ↗
Simplify Expressions Using the Order of Operations
In the following exercises, simplify.
Answer
2.1-61 §2.1 source ↗
Simplify Expressions Using the Order of Operations
In the following exercises, simplify.
Answer
2.1-63 §2.1 source ↗
Simplify Expressions Using the Order of Operations
In the following exercises, simplify.
Answer
Be Prepared 2.4 §2.2 source ↗
If you missed this problem, review Example 2.4.
Answer
Be Prepared 2.5 §2.2 source ↗
If you missed this problem, review Example 2.7.
Answer
Be Prepared 2.6 §2.2 source ↗
If you missed this problem, review Example 2.8.
Answer
Try It 2.25 §2.2 source ↗
Evaluate:
ⓐ
ⓑ
Answer
ⓐ 10
ⓑ 19
Try It 2.26 §2.2 source ↗
Evaluate:
ⓐ
ⓑ
Answer
ⓐ 4
ⓑ 12
Try It 2.27 §2.2 source ↗
Evaluate:
ⓐ
ⓑ
Answer
ⓐ 13
ⓑ 5
Try It 2.28 §2.2 source ↗
Evaluate:
ⓐ
ⓑ
Answer
ⓐ 8
ⓑ 16
Try It 2.29 §2.2 source ↗
Evaluate:
Answer
Try It 2.30 §2.2 source ↗
Evaluate:
Answer
Try It 2.31 §2.2 source ↗
Evaluate:
Answer
Try It 2.32 §2.2 source ↗
Evaluate:
Answer
Try It 2.33 §2.2 source ↗
Evaluate:
Answer
Try It 2.34 §2.2 source ↗
Evaluate:
Answer
Try It 2.35 §2.2 source ↗
Evaluate:
Answer
Try It 2.36 §2.2 source ↗
Evaluate:
Answer
Try It 2.37 §2.2 source ↗
Identify all terms in the given expression, and their coefficients:
Answer
Try It 2.38 §2.2 source ↗
Identify all terms in the given expression, and their coefficients:
Answer
Try It 2.39 §2.2 source ↗
Identify the like terms in the list or the expression:
Answer
Try It 2.40 §2.2 source ↗
Identify the like terms in the list or the expression:
Answer
Try It 2.41 §2.2 source ↗
Simplify:
Answer
Try It 2.42 §2.2 source ↗
Simplify:
Answer
Try It 2.43 §2.2 source ↗
Simplify:
Answer
Try It 2.44 §2.2 source ↗
Simplify:
Answer
Try It 2.45 §2.2 source ↗
Translate the given word phrase into an algebraic expression:
ⓐ the difference of and
ⓑ the quotient of and
Answer
ⓐ 47 − 41
ⓑ 5x ÷ 2
Try It 2.46 §2.2 source ↗
Translate the given word phrase into an algebraic expression:
ⓐ the sum of and
ⓑ the product of and
Answer
ⓐ 17 + 19
ⓑ 7x
Try It 2.47 §2.2 source ↗
Translate each word phrase into an algebraic expression:
ⓐ Eleven more than
ⓑ Fourteen less than
Answer
ⓐ x + 11
ⓑ 11a − 14
Try It 2.48 §2.2 source ↗
Translate each word phrase into an algebraic expression:
ⓐ more than
ⓑ less than
Answer
ⓐ j + 19
ⓑ 2x − 21
Try It 2.49 §2.2 source ↗
Translate the word phrase into an algebraic expression:
ⓐ four times the sum of and
ⓑ the sum of four times and
Answer
ⓐ 4(p + q)
ⓐ 4p + q
Try It 2.50 §2.2 source ↗
Translate the word phrase into an algebraic expression:
ⓐ the difference of two times
ⓑ two times the difference of
Answer
ⓐ 2x − 8
ⓑ 2(x − 8)
Try It 2.51 §2.2 source ↗
Answer
Try It 2.52 §2.2 source ↗
Answer
Try It 2.53 §2.2 source ↗
Answer
Try It 2.54 §2.2 source ↗
Answer
2.2-69 §2.2 source ↗
Evaluate Algebraic Expressions
In the following exercises, evaluate the expression for the given value.
Answer
2.2-71 §2.2 source ↗
Evaluate Algebraic Expressions
In the following exercises, evaluate the expression for the given value.
Answer
2.2-73 §2.2 source ↗
Evaluate Algebraic Expressions
In the following exercises, evaluate the expression for the given value.
Answer
2.2-75 §2.2 source ↗
Evaluate Algebraic Expressions
In the following exercises, evaluate the expression for the given value.
Answer
2.2-77 §2.2 source ↗
Evaluate Algebraic Expressions
In the following exercises, evaluate the expression for the given value.
Answer
2.2-79 §2.2 source ↗
Evaluate Algebraic Expressions
In the following exercises, evaluate the expression for the given value.
Answer
2.2-81 §2.2 source ↗
Evaluate Algebraic Expressions
In the following exercises, evaluate the expression for the given value.
Answer
2.2-83 §2.2 source ↗
Evaluate Algebraic Expressions
In the following exercises, evaluate the expression for the given value.
Answer
2.2-84 §2.2 source ↗
Evaluate Algebraic Expressions
In the following exercises, evaluate the expression for the given value.
Answer
2.2-85 §2.2 source ↗
Evaluate Algebraic Expressions
In the following exercises, evaluate the expression for the given value.
Answer
2.2-87 §2.2 source ↗
Evaluate Algebraic Expressions
In the following exercises, evaluate the expression for the given value.
Answer
2.2-89 §2.2 source ↗
Identify Terms, Coefficients, and Like Terms
In the following exercises, list the terms in the given expression.
Answer
2.2-91 §2.2 source ↗
Identify Terms, Coefficients, and Like Terms
In the following exercises, list the terms in the given expression.
Answer
2.2-93 §2.2 source ↗
In the following exercises, identify the coefficient of the given term.
Answer
2.2-95 §2.2 source ↗
In the following exercises, identify the coefficient of the given term.
Answer
2.2-97 §2.2 source ↗
In the following exercises, identify all sets of like terms.
Answer
2.2-99 §2.2 source ↗
In the following exercises, identify all sets of like terms.
Answer
2.2-101 §2.2 source ↗
Simplify Expressions by Combining Like Terms
In the following exercises, simplify the given expression by combining like terms.
Answer
2.2-103 §2.2 source ↗
Simplify Expressions by Combining Like Terms
In the following exercises, simplify the given expression by combining like terms.
Answer
2.2-105 §2.2 source ↗
Simplify Expressions by Combining Like Terms
In the following exercises, simplify the given expression by combining like terms.
Answer
2.2-107 §2.2 source ↗
Simplify Expressions by Combining Like Terms
In the following exercises, simplify the given expression by combining like terms.
Answer
2.2-109 §2.2 source ↗
Simplify Expressions by Combining Like Terms
In the following exercises, simplify the given expression by combining like terms.
Answer
2.2-111 §2.2 source ↗
Simplify Expressions by Combining Like Terms
In the following exercises, simplify the given expression by combining like terms.
Answer
2.2-113 §2.2 source ↗
Simplify Expressions by Combining Like Terms
In the following exercises, simplify the given expression by combining like terms.
Answer
2.2-115 §2.2 source ↗
Simplify Expressions by Combining Like Terms
In the following exercises, simplify the given expression by combining like terms.
Answer
2.2-117 §2.2 source ↗
Translate English Phrases into Algebraic Expressions
In the following exercises, translate the given word phrase into an algebraic expression.
The sum of 8 and 12
Answer
2.2-119 §2.2 source ↗
Translate English Phrases into Algebraic Expressions
In the following exercises, translate the given word phrase into an algebraic expression.
The difference of 14 and 9
Answer
2.2-121 §2.2 source ↗
Translate English Phrases into Algebraic Expressions
In the following exercises, translate the given word phrase into an algebraic expression.
The product of 9 and 7
Answer
2.2-123 §2.2 source ↗
Translate English Phrases into Algebraic Expressions
In the following exercises, translate the given word phrase into an algebraic expression.
The quotient of 36 and 9
Answer
2.2-125 §2.2 source ↗
Translate English Phrases into Algebraic Expressions
In the following exercises, translate the given word phrase into an algebraic expression.
The difference of and
Answer
2.2-127 §2.2 source ↗
Translate English Phrases into Algebraic Expressions
In the following exercises, translate the given word phrase into an algebraic expression.
The product of and
Answer
2.2-129 §2.2 source ↗
Translate English Phrases into Algebraic Expressions
In the following exercises, translate the given word phrase into an algebraic expression.
The sum of and
Answer
2.2-131 §2.2 source ↗
Translate English Phrases into Algebraic Expressions
In the following exercises, translate the given word phrase into an algebraic expression.
The quotient of and
Answer
2.2-133 §2.2 source ↗
Translate English Phrases into Algebraic Expressions
In the following exercises, translate the given word phrase into an algebraic expression.
Eight times the difference of and nine
Answer
2.2-135 §2.2 source ↗
Translate English Phrases into Algebraic Expressions
In the following exercises, translate the given word phrase into an algebraic expression.
Five times the sum of and
Answer
2.2-137 §2.2 source ↗
In the following exercises, write an algebraic expression.
Adele bought a skirt and a blouse. The skirt cost more than the blouse. Let represent the cost of the blouse. Write an expression for the cost of the skirt.
Answer
2.2-139 §2.2 source ↗
In the following exercises, write an algebraic expression.
The number of girls in a second-grade class is less than the number of boys. Let represent the number of boys. Write an expression for the number of girls.
Answer
2.2-141 §2.2 source ↗
In the following exercises, write an algebraic expression.
Greg has nickels and pennies in his pocket. The number of pennies is seven less than twice the number of nickels. Let represent the number of nickels. Write an expression for the number of pennies.
Answer
2.2-143 §2.2 source ↗
In the following exercises, use algebraic expressions to solve the problem.
Car insurance Justin’s car insurance has a deductible per incident. This means that he pays and his insurance company will pay all costs beyond If Justin files a claim for how much will he pay, and how much will his insurance company pay?
Answer
Be Prepared 2.7 §2.3 source ↗
If you missed this problem, review Example 2.13.
Answer
Be Prepared 2.8 §2.3 source ↗
If you missed this problem, review Example 2.14.
Answer
Be Prepared 2.9 §2.3 source ↗
If you missed this problem, review Example 2.24.
Answer
Try It 2.55 §2.3 source ↗
Answer
Try It 2.56 §2.3 source ↗
Answer
Try It 2.57 §2.3 source ↗
Answer
Try It 2.58 §2.3 source ↗
Answer
Try It 2.59 §2.3 source ↗
Write the equation modeled by the envelopes and counters, and then solve the equation:
Answer
Try It 2.60 §2.3 source ↗
Write the equation modeled by the envelopes and counters, and then solve the equation:
Answer
Try It 2.61 §2.3 source ↗
Solve:
Answer
Try It 2.62 §2.3 source ↗
Solve:
Answer
Try It 2.63 §2.3 source ↗
Solve:
Answer
Try It 2.64 §2.3 source ↗
Solve:
Answer
Try It 2.65 §2.3 source ↗
Solve:
Answer
Try It 2.66 §2.3 source ↗
Solve:
Answer
Try It 2.67 §2.3 source ↗
Solve:
Answer
Try It 2.68 §2.3 source ↗
Solve:
Answer
Try It 2.69 §2.3 source ↗
Translate the sentence into an algebraic equation:
The sum of and gives
Answer
Try It 2.70 §2.3 source ↗
Translate the sentence into an algebraic equation:
The sum of and is
Answer
Try It 2.71 §2.3 source ↗
Translate the sentence into an algebraic equation:
The product of and is
Answer
Try It 2.72 §2.3 source ↗
Translate the sentence into an algebraic equation:
The product of and gives
Answer
Try It 2.73 §2.3 source ↗
Translate the given sentence into an algebraic equation:
Twice the difference of and gives
Answer
Try It 2.74 §2.3 source ↗
Translate the given sentence into an algebraic equation:
Twice the difference of and gives
Answer
Try It 2.75 §2.3 source ↗
Translate and solve:
Seven more than is equal to
Answer
Try It 2.76 §2.3 source ↗
Translate and solve:
Eleven more than is equal to
Answer
Try It 2.77 §2.3 source ↗
Translate and solve:
The difference of and is equal to
Answer
Try It 2.78 §2.3 source ↗
Translate and solve:
The difference of and is equal to
Answer
2.3-147 §2.3 source ↗
Determine Whether a Number is a Solution of an Equation
In the following exercises, determine whether each given value is a solution to the equation.
ⓐ
ⓑ
Answer
ⓐ yes
ⓑ no
2.3-149 §2.3 source ↗
Determine Whether a Number is a Solution of an Equation
In the following exercises, determine whether each given value is a solution to the equation.
ⓐ
ⓑ
Answer
ⓐ no
ⓑ yes
2.3-151 §2.3 source ↗
Determine Whether a Number is a Solution of an Equation
In the following exercises, determine whether each given value is a solution to the equation.
ⓐ
ⓑ
Answer
ⓐ yes
ⓑ no
2.3-153 §2.3 source ↗
Determine Whether a Number is a Solution of an Equation
In the following exercises, determine whether each given value is a solution to the equation.
ⓐ
ⓑ
Answer
ⓐ no
ⓑ yes
2.3-155 §2.3 source ↗
Determine Whether a Number is a Solution of an Equation
In the following exercises, determine whether each given value is a solution to the equation.
ⓐ
ⓑ
Answer
ⓐ no
ⓑ yes
2.3-157 §2.3 source ↗
Determine Whether a Number is a Solution of an Equation
In the following exercises, determine whether each given value is a solution to the equation.
ⓐ
ⓑ
Answer
ⓐ no
ⓑ yes
2.3-159 §2.3 source ↗
Model the Subtraction Property of Equality
In the following exercises, write the equation modeled by the envelopes and counters and then solve using the subtraction property of equality.
Answer
2.3-161 §2.3 source ↗
Model the Subtraction Property of Equality
In the following exercises, write the equation modeled by the envelopes and counters and then solve using the subtraction property of equality.
Answer
2.3-163 §2.3 source ↗
Solve Equations using the Subtraction Property of Equality
In the following exercises, solve each equation using the subtraction property of equality.
Answer
2.3-165 §2.3 source ↗
Solve Equations using the Subtraction Property of Equality
In the following exercises, solve each equation using the subtraction property of equality.
Answer
2.3-167 §2.3 source ↗
Solve Equations using the Subtraction Property of Equality
In the following exercises, solve each equation using the subtraction property of equality.
Answer
2.3-169 §2.3 source ↗
Solve Equations using the Subtraction Property of Equality
In the following exercises, solve each equation using the subtraction property of equality.
Answer
2.3-171 §2.3 source ↗
Solve Equations using the Subtraction Property of Equality
In the following exercises, solve each equation using the subtraction property of equality.
Answer
2.3-173 §2.3 source ↗
Solve Equations using the Subtraction Property of Equality
In the following exercises, solve each equation using the subtraction property of equality.
Answer
2.3-175 §2.3 source ↗
Solve Equations using the Addition Property of Equality
In the following exercises, solve each equation using the addition property of equality.
Answer
2.3-177 §2.3 source ↗
Solve Equations using the Addition Property of Equality
In the following exercises, solve each equation using the addition property of equality.
Answer
2.3-179 §2.3 source ↗
Solve Equations using the Addition Property of Equality
In the following exercises, solve each equation using the addition property of equality.
Answer
2.3-181 §2.3 source ↗
Solve Equations using the Addition Property of Equality
In the following exercises, solve each equation using the addition property of equality.
Answer
2.3-183 §2.3 source ↗
Solve Equations using the Addition Property of Equality
In the following exercises, solve each equation using the addition property of equality.
Answer
2.3-185 §2.3 source ↗
Solve Equations using the Addition Property of Equality
In the following exercises, solve each equation using the addition property of equality.
Answer
2.3-187 §2.3 source ↗
Translate Word Phrase to Algebraic Equations
In the following exercises, translate the given sentence into an algebraic equation.
The sum of and is equal to
Answer
2.3-189 §2.3 source ↗
Translate Word Phrase to Algebraic Equations
In the following exercises, translate the given sentence into an algebraic equation.
The difference of and is equal to
Answer
2.3-191 §2.3 source ↗
Translate Word Phrase to Algebraic Equations
In the following exercises, translate the given sentence into an algebraic equation.
The product of and is equal to
Answer
2.3-193 §2.3 source ↗
Translate Word Phrase to Algebraic Equations
In the following exercises, translate the given sentence into an algebraic equation.
The quotient of and is equal to
Answer
2.3-195 §2.3 source ↗
Translate Word Phrase to Algebraic Equations
In the following exercises, translate the given sentence into an algebraic equation.
Twice the difference of and gives
Answer
2.3-197 §2.3 source ↗
Translate Word Phrase to Algebraic Equations
In the following exercises, translate the given sentence into an algebraic equation.
The sum of three times and is
Answer
2.3-199 §2.3 source ↗
Translate to an Equation and Solve
In the following exercises, translate the given sentence into an algebraic equation and then solve it.
Five more than is equal to
Answer
2.3-201 §2.3 source ↗
Translate to an Equation and Solve
In the following exercises, translate the given sentence into an algebraic equation and then solve it.
The sum of and is
Answer
2.3-203 §2.3 source ↗
Translate to an Equation and Solve
In the following exercises, translate the given sentence into an algebraic equation and then solve it.
The difference of and is equal to
Answer
2.3-205 §2.3 source ↗
Translate to an Equation and Solve
In the following exercises, translate the given sentence into an algebraic equation and then solve it.
less than is
Answer
2.3-207 §2.3 source ↗
Translate to an Equation and Solve
In the following exercises, translate the given sentence into an algebraic equation and then solve it.
less than gives
Answer
2.3-209 §2.3 source ↗
Translate to an Equation and Solve
In the following exercises, translate the given sentence into an algebraic equation and then solve it.
Insurance Vince’s car insurance has a deductible. Find the amount the insurance company will pay, for an claim by solving the equation
Answer
2.3-211 §2.3 source ↗
Translate to an Equation and Solve
In the following exercises, translate the given sentence into an algebraic equation and then solve it.
Sale purchase Arthur bought a suit that was on sale for off. He paid for the suit. Find the original price, of the suit by solving the equation
Answer
Be Prepared 2.10 §2.4 source ↗
If you missed this problem, review Example 1.1.
Answer
Be Prepared 2.11 §2.4 source ↗
If you missed the problem, review Example 2.1.
Answer
Try It 2.79 §2.4 source ↗
Determine whether each number is a multiple of
ⓐ
ⓑ
Answer
ⓐ yes
ⓑ no
Try It 2.80 §2.4 source ↗
Determine whether each number is a multiple of
ⓐ
ⓑ
Answer
ⓐ no
ⓑ yes
Try It 2.81 §2.4 source ↗
Determine whether each number is a multiple of
ⓐ
ⓑ
Answer
ⓐ yes
ⓑ no
Try It 2.82 §2.4 source ↗
Determine whether each number is a multiple of
ⓐ
ⓑ
Answer
ⓐ no
ⓑ yes
Try It 2.83 §2.4 source ↗
Determine whether each number is a multiple of
ⓐ
ⓑ
Answer
ⓐ no
ⓑ yes
Try It 2.84 §2.4 source ↗
Determine whether each number is a multiple of
ⓐ
ⓑ
Answer
ⓐ yes
ⓑ no
Try It 2.85 §2.4 source ↗
Determine whether each number is a multiple of
ⓐ
ⓑ
Answer
ⓐ yes
ⓑ no
Try It 2.86 §2.4 source ↗
Determine whether each number is a multiple of
ⓐ
ⓑ
Answer
ⓐ no
ⓑ yes
Try It 2.87 §2.4 source ↗
Determine whether the given number is divisible by
Answer
Try It 2.88 §2.4 source ↗
Determine whether the given number is divisible by
Answer
Try It 2.89 §2.4 source ↗
Determine whether the given number is divisible
Answer
Try It 2.90 §2.4 source ↗
Determine whether the given number is divisible
Answer
Try It 2.91 §2.4 source ↗
Find all the factors of the given number:
Answer
Try It 2.92 §2.4 source ↗
Find all the factors of the given number:
Answer
Try It 2.93 §2.4 source ↗
Identify the number as prime or composite:
Answer
Try It 2.94 §2.4 source ↗
Identify the number as prime or composite:
Answer
2.4-215 §2.4 source ↗
Identify Multiples of Numbers
In the following exercises, list all the multiples less than for the given number.
Answer
2.4-217 §2.4 source ↗
Identify Multiples of Numbers
In the following exercises, list all the multiples less than for the given number.
Answer
2.4-219 §2.4 source ↗
Identify Multiples of Numbers
In the following exercises, list all the multiples less than for the given number.
Answer
2.4-221 §2.4 source ↗
Identify Multiples of Numbers
In the following exercises, list all the multiples less than for the given number.
Answer
2.4-223 §2.4 source ↗
Identify Multiples of Numbers
In the following exercises, list all the multiples less than for the given number.
Answer
2.4-225 §2.4 source ↗
Use Common Divisibility Tests
In the following exercises, use the divisibility tests to determine whether each number is divisible by
Answer
2.4-227 §2.4 source ↗
Use Common Divisibility Tests
In the following exercises, use the divisibility tests to determine whether each number is divisible by
Answer
2.4-229 §2.4 source ↗
Use Common Divisibility Tests
In the following exercises, use the divisibility tests to determine whether each number is divisible by
Answer
2.4-231 §2.4 source ↗
Use Common Divisibility Tests
In the following exercises, use the divisibility tests to determine whether each number is divisible by
Answer
2.4-233 §2.4 source ↗
Use Common Divisibility Tests
In the following exercises, use the divisibility tests to determine whether each number is divisible by
Answer
2.4-235 §2.4 source ↗
Use Common Divisibility Tests
In the following exercises, use the divisibility tests to determine whether each number is divisible by
Answer
2.4-237 §2.4 source ↗
Use Common Divisibility Tests
In the following exercises, use the divisibility tests to determine whether each number is divisible by
Answer
2.4-239 §2.4 source ↗
Use Common Divisibility Tests
In the following exercises, use the divisibility tests to determine whether each number is divisible by
Answer
2.4-241 §2.4 source ↗
Use Common Divisibility Tests
In the following exercises, use the divisibility tests to determine whether each number is divisible by
Answer
2.4-243 §2.4 source ↗
Find All the Factors of a Number
In the following exercises, find all the factors of the given number.
Answer
2.4-245 §2.4 source ↗
Find All the Factors of a Number
In the following exercises, find all the factors of the given number.
Answer
2.4-247 §2.4 source ↗
Find All the Factors of a Number
In the following exercises, find all the factors of the given number.
Answer
2.4-249 §2.4 source ↗
Find All the Factors of a Number
In the following exercises, find all the factors of the given number.
Answer
2.4-251 §2.4 source ↗
Identify Prime and Composite Numbers
In the following exercises, determine if the given number is prime or composite.
Answer
2.4-253 §2.4 source ↗
Identify Prime and Composite Numbers
In the following exercises, determine if the given number is prime or composite.
Answer
2.4-255 §2.4 source ↗
Identify Prime and Composite Numbers
In the following exercises, determine if the given number is prime or composite.
Answer
2.4-257 §2.4 source ↗
Identify Prime and Composite Numbers
In the following exercises, determine if the given number is prime or composite.
Answer
2.4-259 §2.4 source ↗
Identify Prime and Composite Numbers
In the following exercises, determine if the given number is prime or composite.
Answer
2.4-261 §2.4 source ↗
Identify Prime and Composite Numbers
In the following exercises, determine if the given number is prime or composite.
Answer
2.4-263 §2.4 source ↗
Identify Prime and Composite Numbers
In the following exercises, determine if the given number is prime or composite.
Banking Frank’s grandmother gave him at his high school graduation. Instead of spending it, Frank opened a bank account. Every week, he added to the account. The table shows how much money Frank had put in the account by the end of each week. Complete the table by filling in the blanks.
| Weeks after graduation | Total number of dollars Frank put in the account | Simplified Total |
|---|---|---|
Answer
Be Prepared 2.12 §2.5 source ↗
If you missed this problem, review Example 2.44.
Answer
Be Prepared 2.13 §2.5 source ↗
If you missed this problem, review Example 2.47.
Answer
Be Prepared 2.13 (b) §2.5 source ↗
If you missed this problem, review Example 2.5.
Answer
Try It 2.95 §2.5 source ↗
Answer
Try It 2.96 §2.5 source ↗
Answer
Try It 2.97 §2.5 source ↗
Answer
Try It 2.98 §2.5 source ↗
Answer
Try It 2.99 §2.5 source ↗
Answer
Try It 2.100 §2.5 source ↗
Answer
Try It 2.101 §2.5 source ↗
Answer
Try It 2.102 §2.5 source ↗
Answer
Try It 2.103 §2.5 source ↗
Answer
Try It 2.104 §2.5 source ↗
Answer
Try It 2.105 §2.5 source ↗
Answer
Try It 2.106 §2.5 source ↗
Answer
Try It 2.107 §2.5 source ↗
Answer
Try It 2.108 §2.5 source ↗
Answer
2.5-267 §2.5 source ↗
Find the Prime Factorization of a Composite Number
In the following exercises, find the prime factorization of each number using the factor tree method.
Answer
2.5-269 §2.5 source ↗
Find the Prime Factorization of a Composite Number
In the following exercises, find the prime factorization of each number using the factor tree method.
Answer
2.5-271 §2.5 source ↗
Find the Prime Factorization of a Composite Number
In the following exercises, find the prime factorization of each number using the factor tree method.
Answer
2.5-273 §2.5 source ↗
Find the Prime Factorization of a Composite Number
In the following exercises, find the prime factorization of each number using the factor tree method.
Answer
2.5-275 §2.5 source ↗
Find the Prime Factorization of a Composite Number
In the following exercises, find the prime factorization of each number using the factor tree method.
Answer
2.5-277 §2.5 source ↗
In the following exercises, find the prime factorization of each number using the ladder method.
Answer
2.5-279 §2.5 source ↗
In the following exercises, find the prime factorization of each number using the ladder method.
Answer
2.5-281 §2.5 source ↗
In the following exercises, find the prime factorization of each number using the ladder method.
Answer
2.5-283 §2.5 source ↗
In the following exercises, find the prime factorization of each number using the ladder method.
Answer
2.5-285 §2.5 source ↗
In the following exercises, find the prime factorization of each number using the ladder method.
Answer
2.5-287 §2.5 source ↗
In the following exercises, find the prime factorization of each number using any method.
Answer
2.5-289 §2.5 source ↗
In the following exercises, find the prime factorization of each number using any method.
Answer
2.5-291 §2.5 source ↗
In the following exercises, find the prime factorization of each number using any method.
Answer
2.5-293 §2.5 source ↗
In the following exercises, find the prime factorization of each number using any method.
Answer
2.5-295 §2.5 source ↗
Find the Least Common Multiple (LCM) of Two Numbers
In the following exercises, find the least common multiple (LCM) by listing multiples.
Answer
2.5-297 §2.5 source ↗
Find the Least Common Multiple (LCM) of Two Numbers
In the following exercises, find the least common multiple (LCM) by listing multiples.
Answer
2.5-299 §2.5 source ↗
Find the Least Common Multiple (LCM) of Two Numbers
In the following exercises, find the least common multiple (LCM) by listing multiples.
Answer
2.5-301 §2.5 source ↗
Find the Least Common Multiple (LCM) of Two Numbers
In the following exercises, find the least common multiple (LCM) by listing multiples.
Answer
2.5-303 §2.5 source ↗
In the following exercises, find the least common multiple (LCM) by using the prime factors method.
Answer
2.5-305 §2.5 source ↗
In the following exercises, find the least common multiple (LCM) by using the prime factors method.
Answer
2.5-307 §2.5 source ↗
In the following exercises, find the least common multiple (LCM) by using the prime factors method.
Answer
2.5-309 §2.5 source ↗
In the following exercises, find the least common multiple (LCM) using any method.
Answer
2.5-311 §2.5 source ↗
In the following exercises, find the least common multiple (LCM) using any method.
Answer
2.5-313 §2.5 source ↗
In the following exercises, find the least common multiple (LCM) using any method.
Grocery shopping Hot dogs are sold in packages of ten, but hot dog buns come in packs of eight. What is the smallest number of hot dogs and buns that can be purchased if you want to have the same number of hot dogs and buns? (Hint: it is the LCM!)
Answer
2.R-317 §2.R source ↗
Use Variables and Algebraic Symbols
In the following exercises, translate from algebra to English.
Answer
2.R-319 §2.R source ↗
Use Variables and Algebraic Symbols
In the following exercises, translate from algebra to English.
Answer
2.R-321 §2.R source ↗
Use Variables and Algebraic Symbols
In the following exercises, translate from algebra to English.
Answer
2.R-323 §2.R source ↗
Use Variables and Algebraic Symbols
In the following exercises, translate from algebra to English.
Answer
2.R-325 §2.R source ↗
Identify Expressions and Equations
In the following exercises, determine if each is an expression or equation.
Answer
2.R-327 §2.R source ↗
Identify Expressions and Equations
In the following exercises, determine if each is an expression or equation.
Answer
2.R-329 §2.R source ↗
Simplify Expressions with Exponents
In the following exercises, write in exponential form.
Answer
2.R-331 §2.R source ↗
Simplify Expressions with Exponents
In the following exercises, write in exponential form.
Answer
2.R-333 §2.R source ↗
In the following exercises, write in expanded form.
Answer
2.R-335 §2.R source ↗
In the following exercises, write in expanded form.
Answer
2.R-337 §2.R source ↗
In the following exercises, simplify each expression.
Answer
2.R-339 §2.R source ↗
In the following exercises, simplify each expression.
Answer
2.R-341 §2.R source ↗
Simplify Expressions Using the Order of Operations
In the following exercises, simplify.
Answer
2.R-343 §2.R source ↗
Simplify Expressions Using the Order of Operations
In the following exercises, simplify.
Answer
2.R-345 §2.R source ↗
Simplify Expressions Using the Order of Operations
In the following exercises, simplify.
Answer
2.R-347 §2.R source ↗
Simplify Expressions Using the Order of Operations
In the following exercises, simplify.
Answer
2.R-349 §2.R source ↗
Evaluate an Expression
In the following exercises, evaluate the following expressions.
Answer
2.R-351 §2.R source ↗
Evaluate an Expression
In the following exercises, evaluate the following expressions.
Answer
2.R-353 §2.R source ↗
Identify Terms, Coefficients and Like Terms
In the following exercises, identify the terms in each expression.
Answer
2.R-355 §2.R source ↗
In the following exercises, identify the coefficient of each term.
Answer
2.R-357 §2.R source ↗
In the following exercises, identify the like terms.
Answer
2.R-359 §2.R source ↗
Simplify Expressions by Combining Like Terms
In the following exercises, simplify the following expressions by combining like terms.
Answer
2.R-361 §2.R source ↗
Simplify Expressions by Combining Like Terms
In the following exercises, simplify the following expressions by combining like terms.
Answer
2.R-363 §2.R source ↗
Simplify Expressions by Combining Like Terms
In the following exercises, simplify the following expressions by combining like terms.
Answer
2.R-365 §2.R source ↗
Simplify Expressions by Combining Like Terms
In the following exercises, simplify the following expressions by combining like terms.
Answer
2.R-367 §2.R source ↗
Translate English Phrases to Algebraic Expressions
In the following exercises, translate the following phrases into algebraic expressions.
the difference of and
Answer
2.R-369 §2.R source ↗
Translate English Phrases to Algebraic Expressions
In the following exercises, translate the following phrases into algebraic expressions.
the product of and
Answer
2.R-371 §2.R source ↗
Translate English Phrases to Algebraic Expressions
In the following exercises, translate the following phrases into algebraic expressions.
times the sum of and
Answer
2.R-373 §2.R source ↗
Translate English Phrases to Algebraic Expressions
In the following exercises, translate the following phrases into algebraic expressions.
Jack bought a sandwich and a coffee. The cost of the sandwich was more than the cost of the coffee. Call the cost of the coffee Write an expression for the cost of the sandwich.
Answer
2.R-375 §2.R source ↗
Determine Whether a Number is a Solution of an Equation
In the following exercises, determine whether each number is a solution to the equation.
ⓐ
ⓑ
Answer
ⓐ yes
ⓑ no
2.R-377 §2.R source ↗
Determine Whether a Number is a Solution of an Equation
In the following exercises, determine whether each number is a solution to the equation.
ⓐ
ⓑ
Answer
ⓐ yes
ⓑ no
2.R-379 §2.R source ↗
Determine Whether a Number is a Solution of an Equation
In the following exercises, determine whether each number is a solution to the equation.
ⓐ
ⓑ
Answer
ⓐ no
ⓑ yes
2.R-381 §2.R source ↗
Model the Subtraction Property of Equality
In the following exercises, write the equation modeled by the envelopes and counters and then solve the equation using the subtraction property of equality.
Answer
2.R-383 §2.R source ↗
Solve Equations using the Subtraction Property of Equality
In the following exercises, solve each equation using the subtraction property of equality.
Answer
2.R-385 §2.R source ↗
Solve Equations using the Subtraction Property of Equality
In the following exercises, solve each equation using the subtraction property of equality.
Answer
2.R-387 §2.R source ↗
Solve Equations using the Addition Property of Equality
In the following exercises, solve each equation using the addition property of equality.
Answer
2.R-389 §2.R source ↗
Solve Equations using the Addition Property of Equality
In the following exercises, solve each equation using the addition property of equality.
Answer
2.R-391 §2.R source ↗
Translate English Sentences to Algebraic Equations
In the following exercises, translate each English sentence into an algebraic equation.
The sum of and is equal to
Answer
2.R-393 §2.R source ↗
Translate English Sentences to Algebraic Equations
In the following exercises, translate each English sentence into an algebraic equation.
The product of and is equal to
Answer
2.R-395 §2.R source ↗
Translate English Sentences to Algebraic Equations
In the following exercises, translate each English sentence into an algebraic equation.
Twice the difference of and gives
Answer
2.R-397 §2.R source ↗
Translate to an Equation and Solve
In the following exercises, translate each English sentence into an algebraic equation and then solve it.
Eight more than is equal to
Answer
2.R-399 §2.R source ↗
Translate to an Equation and Solve
In the following exercises, translate each English sentence into an algebraic equation and then solve it.
The difference of and is
Answer
2.R-401 §2.R source ↗
Mixed Practice
In the following exercises, solve each equation.
Answer
2.R-403 §2.R source ↗
Mixed Practice
In the following exercises, solve each equation.
Answer
2.R-405 §2.R source ↗
Mixed Practice
In the following exercises, solve each equation.
Answer
2.R-407 §2.R source ↗
Mixed Practice
In the following exercises, solve each equation.
Answer
2.R-409 §2.R source ↗
Identify Multiples of Numbers
In the following exercises, list all the multiples less than for each of the following.
Answer
2.R-411 §2.R source ↗
Identify Multiples of Numbers
In the following exercises, list all the multiples less than for each of the following.
Answer
2.R-413 §2.R source ↗
Use Common Divisibility Tests
In the following exercises, using the divisibility tests, determine whether each number is divisible by
Answer
2.R-415 §2.R source ↗
Use Common Divisibility Tests
In the following exercises, using the divisibility tests, determine whether each number is divisible by
Answer
2.R-417 §2.R source ↗
Find All the Factors of a Number
In the following exercises, find all the factors of each number.
Answer
2.R-419 §2.R source ↗
Find All the Factors of a Number
In the following exercises, find all the factors of each number.
Answer
2.R-421 §2.R source ↗
Identify Prime and Composite Numbers
In the following exercises, identify each number as prime or composite.
Answer
2.R-423 §2.R source ↗
Identify Prime and Composite Numbers
In the following exercises, identify each number as prime or composite.
Answer
2.R-425 §2.R source ↗
Find the Prime Factorization of a Composite Number
In the following exercises, find the prime factorization of each number.
Answer
2.R-427 §2.R source ↗
Find the Prime Factorization of a Composite Number
In the following exercises, find the prime factorization of each number.
Answer
2.R-429 §2.R source ↗
Find the Least Common Multiple of Two Numbers
In the following exercises, find the least common multiple of each pair of numbers.
Answer
2.R-431 §2.R source ↗
Find the Least Common Multiple of Two Numbers
In the following exercises, find the least common multiple of each pair of numbers.
Answer
2.R-433 §2.R source ↗
Find the Least Common Multiple of Two Numbers
In the following exercises, find the least common multiple of each pair of numbers.
Describe how you have used two topics from The Language of Algebra chapter in your life outside of your math class during the past month.
Answer
2.T-435 §2.T source ↗
In the following exercises, translate from an algebraic equation to English phrases.
Answer
2.T-437 §2.T source ↗
In the following exercises, identify each as an expression or equation.
Answer
2.T-439 §2.T source ↗
In the following exercises, identify each as an expression or equation.
ⓐ Write in exponential form.
ⓑ Write in expanded form and then simplify.
Answer
ⓐ n6
ⓑ 3 ⋅ 3 ⋅ 3 ⋅ 3 ⋅ 3 = 243
2.T-441 §2.T source ↗
In the following exercises, simplify, using the order of operations.
Answer
2.T-443 §2.T source ↗
In the following exercises, simplify, using the order of operations.
Answer
2.T-445 §2.T source ↗
In the following exercises, simplify, using the order of operations.
Answer
2.T-447 §2.T source ↗
In the following exercises, evaluate each expression.
Answer
2.T-449 §2.T source ↗
In the following exercises, evaluate each expression.
Answer
2.T-451 §2.T source ↗
In the following exercises, translate each phrase into an algebraic expression.
more than
Answer
2.T-453 §2.T source ↗
In the following exercises, translate each phrase into an algebraic expression.
three times the difference of
Answer
2.T-455 §2.T source ↗
In the following exercises, solve each equation.
Answer
2.T-457 §2.T source ↗
In the following exercises, translate each English sentence into an algebraic equation and then solve it.
less than is
Answer
2.T-459 §2.T source ↗
In the following exercises, translate each English sentence into an algebraic equation and then solve it.
List all the multiples of that are less than
Answer
2.T-461 §2.T source ↗
In the following exercises, translate each English sentence into an algebraic equation and then solve it.
Find the prime factorization of
Answer
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Problems and answers are adapted from Prealgebra 2e by Lynn Marecek, MaryAnne Anthony-Smith and Andrea Honeycutt Mathis, OpenStax, and are used under the CC BY-NC-SA 4.0 licence. Access for free at https://openstax.org/books/prealgebra-2e/pages/1-introduction. Illustrations: Copyright Rice University, OpenStax, under CC BY-NC-SA 4.0 license. This adaptation is released under the same licence, is non-commercial, and is neither affiliated with nor endorsed by OpenStax or Rice University.