Unit 5 Inequalities Review
Quiz
•
Mathematics
•
9th Grade
•
Hard
Standards-aligned
Brock Baker
Used 3+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
10 mins • 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
Answer explanation
To find the number of miles, x, the driver needs to drive, we set up the inequality: rental fee ($375) plus the cost per mile ($0.85x) must be greater than $450. Thus, the correct inequality is 0.85x + 375 > 450.
Tags
CCSS.7.EE.B.4B
2.
MULTIPLE CHOICE QUESTION
10 mins • 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
Answer explanation
To find how many dogs Katie needs to walk, we start with her current amount ($25) and add the money she earns from walking dogs ($12 per dog). The inequality 25 + 12x ≥ 200 represents this situation.
Tags
CCSS.7.EE.B.4B
3.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Solve:
x < 24
x < 3
x > 24
x < 10.3333....
Answer explanation
To solve the inequality, we find that x must be less than 24. This is the only option that satisfies the condition, making 'x < 24' the correct answer.
Tags
CCSS.7.EE.B.4B
4.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Which of the following is the solution of 2x + 3 ≤ 9 in real numbers?
x ≤ 3
x ≥ 2
x ≤ 6
x < 6
Answer explanation
To solve 2x + 3 ≤ 9, subtract 3 from both sides to get 2x ≤ 6. Then, divide by 2 to find x ≤ 3. Thus, the correct solution is x ≤ 3.
Tags
CCSS.7.EE.B.4B
5.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Match the graph with the given solution.
A
B
C
D
Answer explanation
Graph B correctly represents the solution provided, aligning with the characteristics and data points outlined in the question. The other options do not match the required criteria.
Tags
CCSS.6.EE.B.8
6.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Which graph matches the inequality
r ≥ -6?
A
B
C
D
Answer explanation
The inequality r ≥ -6 means r can be any value greater than or equal to -6. Graph A correctly shows a solid line at -6, indicating that -6 is included, and shading to the right, representing all values greater than -6.
Tags
CCSS.6.EE.B.8
7.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Answer explanation
To solve the inequality 3x - 5 < 7, add 5 to both sides to get 3x < 12. Then, divide by 3 to find x < 4. Thus, the correct answer is x < 4.
Tags
CCSS.7.EE.B.4B
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