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) \(250
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