Module 8 - Expressions & Equations

Solve the equation: 50 = -2.5x

• x = -10

• x = 20

• x = -20

• x = 10

Simplify the expression: 18m - 9v + 6v - 7m

• 11m - 3v

• 25m - 16v

• 11m + 3v

• 25m + 16v

Simplify the expression: 1.8y - 9.3y - 6.3y

• -13.8y

• 13.8y

• -1.2y

• 1.2y

Which of the following is a true statement?

• -4(2x - 3) = -8x - 12

• -7(4x - 8) = -28x + 56

• 5(3x + 6) = 15x + 6

• 10 - 2(x + 5) = -2x + 20

A home improvement store advertises 60 square feet of flooring for $287.00 including an $80.00 installation fee. How much does each square foot of flooring cost?

• $3.45

• $4.45

• $5.45

• $6.45

Solve the equation: 3/4x + 6 = 33

• x = 36

• x = 30

• x = 24

• x = 18

Solve the equation: x - 9.5 = -10.5. What is the value of x?

• -1

• 1

• -2

• 0

A fifteen passenger van is rented for a family vacation. The van rental is $75.00 per day, plus a $160.00 insurance fee. Which equation could be used to find x, the number of days the van could be rented, if they want to spend exactly $760.00 on the van rental?

• 75.00x + 160.00 = 760.00

• 75.00x - 160.00 = 760.00

• 75.00 - 160.00x = 760.00

• 75.00 + 160.00x = 760.00

On the cross-country team, 7th graders are required to run x number of miles each morning. 8th graders are required to run 15% more than the 7th graders. Which expression represents the number of miles an 8th grader is required to run?

• 1.15x

• 0.85x

• x + 0.85x

• x + 0.15

Write an expression to represent the perimeter of the figure below.

• 6x - 8

• 4x + 8

• 3x - 4

• 5x - 6