Chapter 2

Introductory and Intermediate Algebra for College Students 4th · 562 exercises

Problem 10

Graph the solutions of each inequality on a number line. $$-3 \leq x<6$$

4 step solution

Problem 10

Solve each equation using the multiplication property of equality. Be sure to check your proposed solutions. $$-36=8 z$$

3 step solution

Problem 10

A triangle has a base of 6 feet and an area of 30 square feet. Find the triangle's height.

4 step solution

Problem 10

Let \(x\) represent the number. Use the given conditions to write an equation. Solve the equation and find the number. The sum of five and three times a number is \(59 .\) Find the number.

3 step solution

Problem 10

Solve equation. Be sure to check your proposed solution by substituting it for the variable in the original equation. \(4(2 x-3)=32\)

4 step solution

Problem 10

In Exercises \(1-26,\) solve each formula for the specified variable. Do you recognize the formula? If so, what does it describe? $$y=m x+b \text { for } x$$

2 step solution

Problem 11

Graph the solutions of each inequality on a number line. $$-1

4 step solution

Problem 11

Solve each equation using the multiplication property of equality. Be sure to check your proposed solutions. $$-18=-3 z$$

3 step solution

Problem 11

Solve each equation. Using the addition property of equality. Be sure to check your proposed solutions. $$x-4=19$$

2 step solution

Problem 11

A rectangle has a width of 44 centimeters and a perimeter of 188 centimeters. What is the rectangle's length?

4 step solution

Problem 11

Let \(x\) represent the number. Use the given conditions to write an equation. Solve the equation and find the number. Seven subtracted from five times a number is \(178 .\) Find the number.

3 step solution

Problem 11

Solve equation. Be sure to check your proposed solution by substituting it for the variable in the original equation. \(38=30-2(x-1)\)

4 step solution

Problem 11

In Exercises \(1-26,\) solve each formula for the specified variable. Do you recognize the formula? If so, what does it describe? $$T=D+p m \text { for } D$$

3 step solution

Problem 12

Graph the solutions of each inequality on a number line. $$-2 \leq x \leq 0$$

3 step solution

Problem 12

Solve each equation using the multiplication property of equality. Be sure to check your proposed solutions. $$-54=-9 z$$

4 step solution

Problem 12

Solve each equation. Using the addition property of equality. Be sure to check your proposed solutions. $$y-5=-18$$

3 step solution

Problem 12

A rectangle has a width of 46 centimeters and a perimeter of 208 centimeters. What is the rectangle's length?

3 step solution

Problem 12

Let \(x\) represent the number. Use the given conditions to write an equation. Solve the equation and find the number. Eight subtracted from six times a number is \(298 .\) Find the number.

2 step solution

Problem 12

Solve equation. Be sure to check your proposed solution by substituting it for the variable in the original equation. \(20=44-8(2-x)\)

4 step solution

Problem 12

In Exercises \(1-26,\) solve each formula for the specified variable. Do you recognize the formula? If so, what does it describe? $$P=C+M C \text { for } M$$

3 step solution

Problem 13

Express the solution set of each inequality in interval notation and graph the interval. $$x \leq 3$$

3 step solution

Problem 13

Solve each equation using the multiplication property of equality. Be sure to check your proposed solutions. $$-8 x=6$$

4 step solution

Problem 13

Solve each equation. Using the addition property of equality. Be sure to check your proposed solutions. $$z+8=-12$$

3 step solution

Problem 13

Let \(x\) represent the number. Use the given conditions to write an equation. Solve the equation and find the number. A number increased by 5 is two times the number. Find the number.

2 step solution

Problem 13

Solve equation. Be sure to check your proposed solution by substituting it for the variable in the original equation. \(2(4 z+3)-8=46\)

4 step solution

Problem 13

In Exercises \(1-26,\) solve each formula for the specified variable. Do you recognize the formula? If so, what does it describe? $$A=\frac{1}{2} b h \text { for } b$$

3 step solution

Problem 14

Express the solution set of each inequality in interval notation and graph the interval. $$x \leq 5$$

3 step solution

Problem 14

Solve each equation using the multiplication property of equality. Be sure to check your proposed solutions. $$-8 x=4$$

2 step solution

Problem 14

Solve each equation. Using the addition property of equality. Be sure to check your proposed solutions. $$z+13=-15$$

3 step solution

Problem 14

Let \(x\) represent the number. Use the given conditions to write an equation. Solve the equation and find the number. A number increased by 12 is four times the number. Find the number.

3 step solution

Problem 14

Solve equation. Be sure to check your proposed solution by substituting it for the variable in the original equation. \(3(3 z+5)-7=89\)

3 step solution

Problem 14

In Exercises \(1-26,\) solve each formula for the specified variable. Do you recognize the formula? If so, what does it describe? $$A=\frac{1}{2} b h \text { for } h$$

3 step solution

Problem 15

Express the solution set of each inequality in interval notation and graph the interval. $$x>\frac{5}{2}$$

3 step solution

Problem 15

Solve each equation using the multiplication property of equality. Be sure to check your proposed solutions. $$17 y=0$$

3 step solution

Problem 15

Solve each equation. Using the addition property of equality. Be sure to check your proposed solutions. $$-2=x+14$$

2 step solution

Problem 15

Let \(x\) represent the number. Use the given conditions to write an equation. Solve the equation and find the number. Twice the sum of four and a number is \(36 .\) Find the number.

3 step solution

Problem 15

Solve equation. Be sure to check your proposed solution by substituting it for the variable in the original equation. \(6 x-(3 x+10)=14\)

5 step solution

Problem 15

In Exercises \(1-26,\) solve each formula for the specified variable. Do you recognize the formula? If so, what does it describe? $$M=\frac{n}{5} \text { for } n$$

2 step solution

Problem 16

Express the solution set of each inequality in interval notation and graph the interval. $$x>\frac{7}{2}$$

3 step solution

Problem 16

Solve each equation using the multiplication property of equality. Be sure to check your proposed solutions. $$-16 y=0$$

2 step solution

Problem 16

Solve each equation. Using the addition property of equality. Be sure to check your proposed solutions. $$-13=x+11$$

3 step solution

Problem 16

Let \(x\) represent the number. Use the given conditions to write an equation. Solve the equation and find the number. Three times the sum of five and a number is \(48 .\) Find the number.

3 step solution

Problem 16

Solve equation. Be sure to check your proposed solution by substituting it for the variable in the original equation. \(5 x-(2 x+14)=10\)

4 step solution

Problem 16

In Exercises \(1-26,\) solve each formula for the specified variable. Do you recognize the formula? If so, what does it describe? $$M=\frac{A}{740} \operatorname{for} A$$

3 step solution

Problem 17

Express the solution set of each inequality in interval notation and graph the interval. $$x \leq 0$$

3 step solution

Problem 17

Solve each equation. Using the addition property of equality. Be sure to check your proposed solutions. $$-17=y-5$$

3 step solution

Problem 17

Solve each equation using the multiplication property of equality. Be sure to check your proposed solutions. $$\frac{2}{3} y=12$$

3 step solution

Problem 17

Let \(x\) represent the number. Use the given conditions to write an equation. Solve the equation and find the number. Nine times a number is 30 more than three times that number. Find the number.

3 step solution

Problem 17

Solve equation. Be sure to check your proposed solution by substituting it for the variable in the original equation. \(5(2 x+1)=12 x-3\)

4 step solution

Problem 17

In Exercises \(1-26,\) solve each formula for the specified variable. Do you recognize the formula? If so, what does it describe? $$\frac{c}{2}+80=2 F \text { for } c$$

3 step solution

Show/ page