Johnny earns $15 per hour dog walking. He wants to earn at least $105 to buy a new bike. Which inequality represents how long Johnny needs to work to afford his new bike?
Inequality Practical Problems

Quiz
•
Mathematics
•
9th Grade
•
Hard
Anthony Clark
FREE Resource
13 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
15h ≤ 105
15h > 105
15h < 105
15h ≥ 105
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Write an inequality:
Twenty-two more than four times a number is less than 82.
22 + 4n ≤ 82
22 + 4n > 82
82 + 22n ≥ 4
22 + 4n < 82
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
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. Which inequality could help you find how many dogs Katie would have to walk to reach her goal?
25 - 12x ≥ 200
25 + 12x ≥ 200
13x ≥ 200
25 + 12x < 200
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A limo driver needs to make more than $450 in one day. He charges a rental fee of $375 plus $0.85 per mile. What inequality represents the number of miles, x, he would have to drive to reach his goal?
0.85x + 375 > 450
0.85x + 375 < 450
0.85 + 375x > 450
0.85 + 375x < 450
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which inequality is represented by the words " at least"?
<
>
≤
≥
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
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
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The dance committee hired a DJ for the fall dance. The DJ charges $125 per hour but offers a $55 discount for clients who pay ahead of time. The committee wants to keep the total cost under $600. Which inequality represents the maximum amount of hours the DJ will play at the dance if the committee pays ahead of time?
125x + 55 < 600
125x - 55 > 600
125x + 55 > 600
125x - 55 < 600
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