7.10B & 7.11A K-Check: Equations & Inequalities

Charlie has more than 50 game coins. 

Charlie has 8 more than 3 times as many game coins as Steven.

If X represents the number of game coins Steven has, which inequality can be used to determine the possible number of game coins Steven has?

• 8 + 3x < 50 

• 3x - 8 > 50

• 3x + 8 > 50

• 8x + 3 > 50

Tags

7.11.A

Ms. Haven had a gift card with a $400 balance. 

She bought several CDs that cost $21 each. 

After the purchase, her gift card balance was $232.

Which equation can be used to determine the number of CDs, d, she purchased?

• 400 + 21d = 232

• 400 - 21d = 232

• 232 - 21d = 400

• 21d = 232

Tags

7.11.A

Which number line shows the solution set for 5x - 2 ≥ - 7?

• F

• G

• H

• J

Tags

7.10.B

At the local coffee shop they sell a reusable mug for $6. 

If you use the mug for a refill, the refill costs $1.30. 

Last month Jason spent $29.40 for the mug and refills.

Which equation can be used to determine the number of refills, r, Jason purchased last month?

• 6 + 1.30r = 29.40

• 6r + 1.30 = 29.40

• 6 + r + 1.30 = 29.40

• 1.30r = 29.40

Tags

7.11.A

Which number line represents the solution set for the inequality:

8 – 2x < 18 

• F

• G

• H

• J

Tags

7.10.B

Washington Middle School wants to collect more than 1,300 cans of food for a local charity. 

So far, they have collected 762 cans.

Which inequality can be used to determine the number of cans, n, they need to collect each day for the next 4 days to meet their goal?

• 762 + 4n > 1300

• 762 + 4n < 1300

• 762 + n > 1300

• 4(762+n) > 1300

Tags

7.11.A

Ms. Holly had a gift card with a $365 balance. 

She bought several CDs that cost $18 each. 

After the purchase, her gift card balance was $185.

Which equation can be used to determine the number of CDs, d, she purchased?

• 365 - 18d = 185

• 365 + 18d = 185

• 18d - 365 = 185

• 365 - 18 - d = 185

Tags

7.11.A

Find the value of x in the following equation:  

9x + 8.9 = -12.7

Tags

7.11.A

Which number line shows the solution for 6x - 8 = 28?

• A

• B

• C

• D

Tags

7.10.B

William has $7.50 to spend at the pretzel shop. 

A large pretzel costs $1.25 and a soft drink costs $0.90. 

He buys one drink and p pretzels.

Which inequality can be used to find the number of pretzels William can buy?

• 1.25 + 0.9p ≤ 7.5

• 1.25p - 0.9 ≤ 7.5

• 1.25p + 0.09 ≥ 7.5

• 1.25p + 0.9 ≤ 7.5

Tags

7.11.A