Inequalities word problems A.5

Joan needed $100 to buy a graphing calculator for her math class. Her neighbor will pay her $5 per hour to babysit and her Father gave her $10 for mowing the lawn. Which inequality represents the minimum amount of hours she will need to babysit in order for her to buy her calculator?

• 5x + 10 ≥ 100
• 5x - 100 ≥ 10
• 10x + 5 ≤ 100
• 5x + 10 > 100

Tags

CCSS.7.EE.B.4B

Cody’s Gym charges a $15 fee to join and $30 per month. Tyler’s Gym charges a $30 fee to join and $20 per month. Write an inequality that could be used to determine after how many months Tyler’s gym would be a better deal.

• 30 + 20x < 15 + 30x
• 30x + 20 < 15x + 30
• 30 + 20x > 15 + 30x
• 30x + 20 > 15x + 30

Tags

CCSS.6.EE.B.5

CCSS.6.EE.B.8

Ken has $264 in his bank account.  He needs to deposit enough money to make his car payment of $189 and still have at least $150 left in his account.  Which inequality describes d, the amount of money Ken needs to deposit?

• 264 + 189 + d ≥150
• d(264 - 189) ≥ 150
• 264 - 189 + d ≥ 150
• d - 189 ≥150

Tags

CCSS.6.EE.B.5

CCSS.6.EE.B.6

CCSS.6.EE.B.8

Camie and Jorge each begin saving money for a new computer. Camie saves $5 per week plus $50 she receives for her birthday. Jorge saves $7 per week. Which of the following can be used to find w, the number of weeks until Jorge has saved at least the same amount as Camie?

• 7w = 5w+50

• 50+5w < 7w

• 5w+50 ≥ 7w

• 7w ≥ 5w+50

Tags

CCSS.7.EE.B.4B

Jo needs to collect at least 1,000 signatures for a petition. He has 520 and wants to collect the same number each week. He has 6 more weeks. Which solution represents how many signatures Jo needs each week?

Tags

CCSS.6.EE.B.5

CCSS.6.EE.B.6

CCSS.6.EE.B.8

Ann wants to spend at most $8.50 on school supplies. She needs to purchase a binder (costs $6.89) and wants to spend the rest on pens, which cost $0.59 each. What is the greatest amount of pens can Ann buy?

• 3

• 2.7

• 2

• 1.15

Tags

CCSS.6.EE.A.2

CCSS.6.EE.B.5

CCSS.6.EE.B.6

CCSS.6.EE.B.7

CCSS.6.NS.B.2

CCSS.6.NS.B.3

Wes wants to spend under $15 on lunch. He decides to buy pizza slices, which cost $2.50 each and a two liter soda which costs $1.75. Which inequality represents this situation?

Tags

CCSS.7.EE.B.4B

Stacy has $25 in her savings account. To save more money, Stacy is selling lemonade for $0.50 a cup. How many cups of lemonade does Stacy need to sell to reach a minimum of $150 in her savings account?

• 63

• 125

• 250

• 300

Tags

CCSS.7.EE.B.4B

Adam works at a video game store Mon-Fri. On Thursday he earns $80 for the day plus $8 per video game sold. If he makes at least $176. Which solution represents the possible number of video games Adam sold on Thursday?

Tags

CCSS.6.EE.B.5

CCSS.6.EE.B.7

CCSS.6.EE.B.8

Which word problem represents the inequality:

x + 32 ≥ 80

(Show work by writing down inequality clue words.)

• Janine's goal is to earn at least $80 for soccer camp. She has earned $32 so far. How much more does she need to earn?

• Janine made more than 80 points during the basketball season. She made 32 points the first five games. How much did she score the rest of the games?

• Janine scored above an 80 on her math homework. But, she turned her work in late and was deducted 32 points. What did she make after the deduction?

Tags

CCSS.7.EE.B.4B