Unit 4A Review

z + 15 = 25

• z = 5

• z = 10

• z = 15

• z = 20

6n = 108

• n = 12

• n = 16

• n = 18

• n = 22

Julia makes $8.25 per hour at McDonalds. Her last paycheck was $453.75. How many hours did Julia work?

• 25 hours

• 34 hours

• 47 hours

• 55 hours

• 9 cups of sugar

• 12 cups of sugar

Match the following:

• x / 9 = 12

• Twelve and three hundreths less than a number.

• 4x

• A number increased by seven is equivalent to twenty-three.

• x + 7 = 23

• A number quadrupled.

• x - 12.03

• A number divided by nine equals twelve.

j - 34 < 13

11k ≥ 187

Jennifer doubled her bracelet collection. Now, she owns more than 26 bracelets. How many bracelets did she own?

Inequality: ​ (a)  

Answer:​ ​ (b)   ​

• 2b > 26
• b > 13 bracelets
• b > 11 bracelets
• b / 2 > 26
• b + 2 > 26
• b> 12 bracelets
• 2b < 26

Daniel and Summer's heights combined is at most 135 inches. If Daniel is 73 inches tall, how tall could Summer be?​

Inequality: ​ (a)  

Answer: ​ (b)   ​

• h + 73 ≤ 135
• h ≤ 62
• h ≤ 76
• h ≤ 73
• h ≤ 65
• h - 73 ≤ 135
• h - 135 ≤ 73
• h + 135 ≤ 73

factor using any common factor:

8x + 24

Mathematical Equivalence

ON