Chapter 8 Test Review

Which is the solution of the equation 15 = x + 8?

• x = 7

• x = 8

• x = 15

• x = 23

y - 3.8 = 14.7

• y = 21.2

• y = 18

• y = 18.5

• y = 6.8

A short bottle contains s grams of jam. A tall bottle contains 4 times as much. If the tall bottle contains t grams of jam, which equation describes the relationship between s and t?

• t = s + 4

• t = s - 4

• t = 4s

• t = s/4

Faith thinks of a number. When she subtracts 41 from it, the result is 109. Which equation can be used to find n, the number that Faith thought of? Choose ALL that Apply.

• 41 - n = 109

• 109 - n = 41

• 109 = n - 41

• n - 41 = 109

• n + 41 = 109

Mr. Young has g goats and c cows on his farm. He has 23 fewer cows than goats. Write each missing value in the table.

30. 35 40. 45 50 55

7 ​ ​ (a)   ​ (b)   22 ​ (c)   ​ (d)  

​ ​ ​

• 33
• 40
• 7
• 45
• 50
• 55
• 22

 Clara earns $9 per hour for her work.  She earned $315 last week.  (L3)

a. Write an equation to represent the number of hours, h, Clara worked last week. 

b. How many hours did Clara work last week?

• 315=9/h

  h=2835

• h=315/9

  h=35

• h=315-9

  h=306

• h=315 + 9

  h=324

Which number line shows the solutions of the inequality z < 17?

• A

• B

• C

• D

A machine can seal fewer than 80 bottles per minute. Which inequality represents this situation?

• b < 80

• b > 80

• b ≤ 80

• b ≥ 80

Which inequality represents the number line shown?

• x ≥ 25

• x > 25

• x ≤ 25

• x < 25

Represent each number line by an inequality. Write each inequality in the table.