Reteach CBA 5.1: Equations & Inequalities

Multiple Choice

Solve x + 6 = 10

• 10

• 6

• 4

• 16

Multiple Choice

Solve x - 10 = 21

• 21

• 10

• 11

• 31

Multiple Choice

Solve 7x = 42

• 7

• 6

• 42

• 35

Multiple Choice

Solve

$$\frac{x}{4}=12$$  

• 4

• 3

• 12

• 48

Multiple Choice

Solve 7x - 5 = 30

• 25/7

• 5

• 35

• 245

Multiple Choice

Solve 8 + 4x = 24

• 2

• 4

• 8

• 24

Multiple Choice

Solve

$$\frac{x}{2}-11=13$$  

• 4

• 48

• 24

• 12

Multiple Choice

Solve (HINT - take care of the division FIRST, then the addition)

$$\frac{x+4}{7}=8$$  

• 52

• 60

• 28

• 84

Multiple Select

Which equation is represented by the model?

• 4x = 2

• x/2 = 4

• 4 = 2x

• x + x = 4

Multiple Choice

What is the solution to the model?

• x = 4

• x = -2

• -x = 4

• x = 2

Multiple Choice

Which set of tiles represents  $$3x-1=-4$$  ? 

Multiple Choice

A fitness club opens with 80 members. Each month the membership increases by 15 members. Which equation represents the relationship between the number of months the club has been opened, x, and the total fitness club membership, y?

• y=15x

• y=15x+80

• y=x+15

• y=80x+15

Multiple Choice

Which of the following situations could be descried by the equation y= -25x + 120

• There are 120 people in the football stadium, and 25 more are entering each hour.

• A plumber charges $25 for a house call and $120 per hour.

• A teacher has 120 students. Her third period has 25 students

• There are 120 gallons of water in a tank. It releases water at a rate of 25 gallons per minute

Multiple Choice

Joey and four of his friends went out to eat. They decided to split the bill evenly. Each person paid $11.13. What was the total bill? Write an equation you could use to solve this equation. Use d as your variable.

• $$\frac{d}{4}=\$11.13$$

• $$4d=\$11.13$$

• $$\frac{d}{5}=\$11.13$$

• $$5d=\$11.13$$

Multiple Choice

Ben and Jerry together scored 50 points in the big game. If Ben scored 16 points, how many points did Jerry score?

Which equation fits this scenario?

• x + 16 = 50

• x - 16 = -50

• -500 + x = 16

• x - 16 = 500

Multiple Choice

Terry had his car repaired at Ace Auto.  He was charged $50 per hour of labor plus $150 for parts.  His total bill for the repair before tax was $375.  How many hours of labor was Terry charged for?

• 2.5 hours

• 4.5 hours

• 7.5 hours

• 10.5 hours

Multiple Choice

Solve the inequality

3x - 7 < 5

• x < 4

• x < -2

• x = 4

Multiple Choice

Which inequality matches the graph?

• x<3

• x>3

• x<3

• x>3

Multiple Choice

Pick the correct letter for:

x < 6

• A

• B

• C

• D

Multiple Choice

Solve the inequality.

30 + n ≥ 50

• n ≥ 50

• x ≥ 80

• n ≤ 30

• n ≥ 20

Multiple Choice

A student needs to collect at least $30.00 for a sports fundraiser. The student has already collected $7.00. The inequality shown can be used to find d, the number of dollars the student still needs. 
d + 7 ≥  30
Which inequality represents the solution set for this situation?

• d ≤ 37

• d ≥ 37

• d ≤ 23

• d ≥ 23

Multiple Choice

-4x + 14 ≤ 54

• x ≥ - 10

• x ≤ -10

• x ≥ 10

• x ≤ 10