Unit 9 Review

Two equations are shown below.

m + 2.2 = 7.3
n – 2.4 = 8.9

Based on the values of m and n, which is correct?

• n < m

• m < n

• n = 6.5

• m = 9.5

What is the value of x in the equation  x+3.5=10.2?

• x=7.7

• x=4

• x=6.7

• x=7.5

A school purchased T-shirts to sell for a fundraiser.

• The school spent $684 for the T-shirts.

• Each T-shirt will sell for $12.

---

Which equation can be used to find the number of T-shirts, x, the school has to sell to earn back the money it spent?

• 12x = 684

• 684x = 12

• 12 + x = 684

• 684 + x = 12

Which value from the set {3, 12, 18, 27} makes x/9=3 true?

• 3

• 12

• 18

• 27

Which value from the set {6, 11, 13, 25} makes (y – 7)² = 36?

• 6

• 11

• 13

• 25

Which value from the set {1/4, 1/2, 2, 4} makes 8y = 4 true?

• 1/4

• 1/2

• 2

• 4

If y minus 18 = 14, what is the value of 3(y + 5)?

• 27

• 32

• 96

• 111

What is the solution to the equation below?

 

1/4x=1/2

• 1/2

• 1/8

• 2

• 1

Which value from the set {1, 3, 6, 9} makes 1/3x = 3 true?

• 1

• 3

• 6

• 9

Maria put 13 3/5 gallons of gas in her car. Her gas tank can hold a total of 15 1/4 gallons of gas. Let g be the number of gallons of gas that were in her tank before she filled up.

g + 13 3/5 = 15 1/4

How many gallons of gasoline were in her tank before she filled up?

• 
  1 1/20 gallons

• 1 13/20 gallons

• 2 3/20 gallons

• 2 7/20 gallons