Chapter 1

Algebra 1 · 388 exercises

Problem 74

Match the problem with the formula needed to solve the problem. Then use the Guess, Check, and Revise strategy or another problem-solving strategy to solve the problem. Area of a rectangle \(\quad A=l w \quad\) Distance \(\quad d=r t\) Simple interest \(\quad I=P r t \quad\) Volume of a cube Temperature \(\quad C=\frac{5}{9}(F-32)\) Surface area of a cube \(S=6 s^{2}\) A piece of cheese cut in the shape of a cube has a volume of 27 cubic inches. What is the length of each edge of the piece of cheese?

4 step solution

Problem 74

Kudzu is a vine native to Japan. Kudzu can grow a foot per day during the summer months. Write an expression that shows how much a 20 -foot kudzu vine can grow during August.

3 step solution

Problem 75

Match the problem with the formula needed to solve the problem. Then use the Guess, Check, and Revise strategy or another problem-solving strategy to solve the problem. Area of a rectangle \(\quad A=l w \quad\) Distance \(\quad d=r t\) Simple interest \(\quad I=P r t \quad\) Volume of a cube Temperature \(\quad C=\frac{5}{9}(F-32)\) Surface area of a cube \(S=6 s^{2}\) You want to construct a patio of 80 square feet with a length of 10 feet. What is the width of the patio?

3 step solution

Problem 75

Evaluate the expression. \(4+3 x\) when \(x=2\)

3 step solution

Problem 75

Write the fraction as a decimal and as a percent. $$ \frac{5}{8} $$

2 step solution

Problem 76

Match the problem with the formula needed to solve the problem. Then use the Guess, Check, and Revise strategy or another problem-solving strategy to solve the problem. Area of a rectangle \(\quad A=l w \quad\) Distance \(\quad d=r t\) Simple interest \(\quad I=P r t \quad\) Volume of a cube Temperature \(\quad C=\frac{5}{9}(F-32)\) Surface area of a cube \(S=6 s^{2}\) A cubic storage box is made with 96 square feet of wood. What is the length of each edge?

3 step solution

Problem 76

Evaluate the expression. \(y \div 8\) when \(y=32\)

3 step solution

Problem 76

Write the fraction as a decimal and as a percent. $$ \frac{3}{4} $$

2 step solution

Problem 77

Evaluate the expression. \(5 \cdot 2 p^{2}\) when \(p=6\)

4 step solution

Problem 77

Write the fraction as a decimal and as a percent. $$ \frac{11}{20} $$

2 step solution

Problem 78

Evaluate the expression. \(t^{4}-t\) when \(t=7\)

3 step solution

Problem 78

Write the fraction as a decimal and as a percent. $$ \frac{4}{25} $$

2 step solution

Problem 79

You tune and restore pianos. As a piano tuner you charge \(\$ 75\) per tuning. The expenses for your piano restoration business are \(\$ 2600\) per month. Which of the following inequalities could you use to find the number of pianos \(p\) you must tune per month in order to at least meet your business expenses? (A) \(75 p \leq 2600\) (B) \(75 p \geq 2600\) (C) \(\frac{75}{p} \geq 2600\) (D) \(75 p=2600\)

2 step solution

Problem 79

Evaluate the expression for the given value of the variable. $$7 \text {x when} \quad x=3$$

3 step solution

Problem 80

The width of a soccer field cannot be greater than 100 yards. The area cannot be greater than \(13,000\) square yards. Which of the following would you use to find the possible lengths of a soccer field? (A) \(100 x \geq 13,000\) (B) \(100 x \leq 13,000\) (C) \(100+x \leq 13,000\) (D) \(100 x=130,000\)

3 step solution

Problem 80

Evaluate the expression for the given value of the variable. $$\text {y+2 when y=10}$$

4 step solution

Problem 81

For which inequality is \(x=238\) a solution? (A) \(250 \geq x+12\) (B) \(250x+12\)

4 step solution

Problem 81

Evaluate the expression for the given value of the variable. $$ \frac{a}{2} \text { when } a=8 $$

2 step solution

Problem 82

You plan to start your own greeting card business. Your startup cost of buying a computer and color printer is \(\$ 1400 .\) You also want to run an ad for \(\$ 50\) a week for 4 weeks. You plan to sell each card for \(\$ 1.79\). How many cards must you sell to equal or exceed your initial costs? Write an inequality that models the situation. Solve the inequality to find the minimum number of cards you must sell.

4 step solution

Problem 82

Evaluate the expression for the given value of the variable. $$\text {m-5 when m=17}$$

3 step solution

Problem 83

Evaluate the expression for the given value of the variable. $$ \frac{9}{b} \text { when } b=4 $$

3 step solution

Problem 84

Evaluate the expression for the given value of the variable. \(9 b\) when \(b=4\)

3 step solution

Problem 85

Evaluate the expression for the given value of the variable. $$\frac{1}{12}+x \text { when } x=\frac{1}{6}$$

5 step solution

Problem 86

Evaluate the expression for the given value of the variable. $$b-12 \text { when } b=43$$

2 step solution

Problem 87

Evaluate the expression for the given value of the variable. $$\frac{4}{5} \cdot y \text { when } y=\frac{1}{5}$$

3 step solution

Problem 88

FORM Write the expression in exponential form. three cubed

2 step solution

Problem 89

FORM Write the expression in exponential form. y squared

2 step solution

Problem 90

FORM Write the expression in exponential form. $$6 \cdot 6 \cdot 6 \cdot 6 \cdot 6$$

2 step solution

Problem 91

Write the expression in exponential form. $$c \cdot c \cdot c \cdot c$$

2 step solution

Problem 92

Write the expression in exponential form. five to the fourth power

3 step solution

Problem 93

Write the expression in exponential form. $$5 y \cdot 5 y \cdot 5 y \cdot 5 y$$

3 step solution

Problem 94

Write the expression in exponential form. three squared

3 step solution

Problem 95

Write the expression in exponential form. $$9 a \cdot 9 a \cdot 9 a \cdot 9 a \cdot 9 a \cdot 9 a$$

2 step solution

Problem 96

Write the expression in exponential form. seven squared

2 step solution

Problem 97

Write the expression in exponential form. one to the third power

2 step solution

Problem 98

Write the expression in exponential form. $$6 \cdot x \cdot x \cdot x \cdot x \cdot x \cdot x$$

3 step solution

Problem 99

Write the expression in exponential form. $$t+t+t+t+t+t$$

3 step solution

Problem 100

The temperature of the water in a swimming pool is \(78^{\circ}\) Fahrenheit. What is the temperature of the water in degrees Celsius? Use the formula \(C=\frac{5}{9}(F-32)\), where \(F\) is the Fahrenheit temperature and \(C\) is the Celsius temperature.

3 step solution

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