Unit 6 Review

Solve for x:
-30 - 5x = 120

• x = 18
• x = -18
• x = 30
• x = -30

Tags

CCSS.7.EE.B.4A

4(2 - y) ≥ 20

• y ≤ -3
• y ≥ -3
• -y ≥ 3
• -4y ≥ 12

Tags

CCSS.7.EE.B.4B

Penelope is going to the carnival to ride the rides. It costs $20 to get into the carnival and ride tickets are $0.50 each. Write an equation that represents this scenario if she spends $35 in all.

• .50x + 20 = 35
• .50x = 35
• .50 + 20x = 35 
• .50x - 20 = 35

Tags

CCSS.HSA.CED.A.3

The temperature in the ice rink must stay at 40°F. This morning, the temperature was 71°F. The ice rink runs a cooling device that can decrease the temperature by 3.5° every hour. Let x represent the number of hours the cooling device was on.

• 40 + 3.5x = 71

• 71 - 3.5x = 40

• 71 - 3.5x = 40

• 71 + 3.5x = 40

Tags

CCSS.HSA.CED.A.3

Connie’s dog Fido weighs 35 pounds. Her vet placed Fido on a diet for 6 months. After the diet, Fido weighed 28 pounds. Let x represent the weight Fido lost each month.

• 35 - 6x = 28

• 35 + 6x = 28

• 35 - 28x = 6

• 35x + 28 = 6

Tags

CCSS.7.EE.B.4A

Mia buys 4.2 pounds of plums. The total cost after using a coupon for 55 cents off her entire purchase was $3.23. If c represents the cost of the plums in dollars per pound, what equation could represent the situation?

• 4.2c + 0.55 = 3.23

• 3.65c = 3.23

• 4.2c - 0.55 = 3.23

• 4.2c - 55 = 3.23

Tags

CCSS.HSA.CED.A.3

Triniti had $500 in a saving account at the beginning of the summer. She wants to have at least $200 in the account by the end of the summer. She withdraws $25 each week for food, clothes, and movie tickets. Which inequality represents her situation?

• 200 + 25x ≥ 500
• 500 + 25x ≥ 200
• 500 - 25x ≥ 200
• 500 - 25x ≤ 200

Tags

CCSS.7.EE.B.4B

Which situation can be represented by the inequality
15 + 6x ≤ 100?

• Lazer Zone charges $15 plus $6 per person. If Andrea has a maximum of $100 to spend, how many people can Andrea invite to play laser tag?
• Lazer Zone charges $6 plus $15 per person. If Andrea has a maximum of $100 to spend, how many people can Andrea invite to play laser tag?
• Lazer Zone charges $15 plus $6 per person. If Andrea has a minimum of $100 to spend, how many people can Andrea invite to play laser tag?
• Lazer Zone charges $6 plus $15 per person. If Andrea has a minimum of $100 to spend, how many people can Andrea invite to play laser tag?

Tags

CCSS.7.EE.B.4B

Match the inequality to the word problem.

Katie wants to have at least $200 in her bank account by the end of the month. She currently has $25 in her bank account. Katie makes $12 for each dog that she walks. How many dogs would Katie have to walk to reach her goal of $200?

• 25 - 12x ≥ 200
• 25 + 12x ≥ 200
• 13x ≥ 200
• 25 + 12x > 200

Tags

CCSS.7.EE.B.4B

⁵/₆x - ¹/₂ > ¹/₃

• x > 1
• x < 1
• 5x > 5 
• x > 5