7R Unit 4A Test Review

Solve the equation

3x = 27

• x = 24

• x = 81

• x = 9

• x = 3

Solve the equation

2 + n = -16

• 18

• -18

• 14

• -14

Solve the equation

 $\frac{3}{5}y=-21$  

• y = 35

• y = -35 

• y =  $-\frac{63}{5}$  

• y =  $-\frac{108}{5}$  

Solve the equation

 $\frac{a}{4}+3=31$  

• a= 28

• a= 112

• a= 7

• a= 67

Solve the equations

 $-2k+12=-40$  

• k = -26

• k = 26

• k = 14

• k = -14 

Solve the equation

 $10x-4-3x=3$  

• x = 1

• x = 2

• x = 3

• x = 4

Solve the equation

3(x - 2) = 18

• x = 6.7

• x = 4

• x = 8

• x = -4

Solve the equation

2(4x - 3) + 6x = 22

• x = 8

• x = -8

• x = 2

• x = -2

You make $15.22 for every hour that you work at a baseball game. This week your paycheck was $158.76. Which equation can be used to find the number of hours worked?

There is a $10 entrance fee to the amusement park. It costs $4.75 per ride. Write and solve an equation to determine how many rides you can go on if you have $48.

• 6 rides

• 4 rides

• 8 rides

• 10 rides