Midterm Exam

Write an equivalent expression for the following:
3r + 4t + 4t + 2r + 6r + 7t

• 26rt
• 11r + 15t
• 11t + 15r

Sam writes the inequality g < 17 to represent the solution to a problem. Which problem could Sam represent with this inequality?

• A girl ate exactly 17 poptarts.
• A girl ate at least 17 poptarts.
• A girl ate less than 17 poptarts.
• A girl ate more than 17 poptarts.

Jim must spend at least 15 minutes practicing multiplication facts and more than 25 minutes practicing cursive writing. Which inequality represents this?

• m < 25
• 15 < 25
• m > 40

Solve the inequality 4g < 64.

• g > 64
• 4 > g
• g < 16
• g = 12

Judy is saving $15 a week to buy an iPod that costs $180. Which inequality can be used to solve the number of weeks, w, that Judy must save to be able to purchase the iPod?

• 180w > 15
• w≤15
• 15w≥180
• w≥15

Sarah's cat weighs more than 12 pounds. Which inequality represents the weight, w, of the cat?

• w < 12
• w > 12

Joe works no more than 15 hours this weekend. Which inequality represents the number of hours, h, that he works.

• h < 15
• h > 15
• h ≤ 15
• h ≥ 15

The temperature in my classroom must be at least 70 degrees. Which inequality represents the temperature, t?

• t < 70
• t > 70
• t ≤ 70
• t ≥ 70

Sue is buying a gift for which her spending must stay under $8. Which inequality AND answer set represents the amount that Sue can spend?

• x < 8  (8, 9, 10)
• x > 8 (12, 14, 16)
• x < 8 (7, 6, 5, 4)
• x ≥ 8 (8, 9, 10)

In Mrs. Knight's class, students must read at least 5 hours to receive 100. Sheila received 100. Which inequality represents the number of hours she read?

• r < 5
• r > 5
• r ≤ 5
• r ≥ 5