Equations And Inequalities Quiz

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| By Cimm8783

Cimm8783

Community Contributor

Quizzes Created: 19 | Total Attempts: 22,918

| Attempts: 198

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1/8 Questions

14= n+12
- 2
- 4
- 12
- 14

About This Quiz

If you need practice with equations and inequalities, then this quiz will help you. Take it to see how many answers you can get.

2.

8n=64
- 8
- 16
- 32
- 64
Correct Answer

A. 8

Explanation

The equation 8n = 64 can be solved by dividing both sides of the equation by 8. This will give us n = 8, which means that when 8 is multiplied by 8, the result is 64. Therefore, the correct answer is 8.

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3.

10=5r
- 2
- 3
- 4
- 5
Correct Answer

A. 2

Explanation

The equation 10 = 5r can be solved for r by dividing both sides of the equation by 5. This gives us r = 2, which means that the value of r that satisfies the equation is 2. Therefore, the correct answer is 2.

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4.

15=10-r
- -5
- 5
- 10
- 15
Correct Answer

A. -5

Explanation

The given equation is 15=10-r. To solve for r, we need to isolate it on one side of the equation. Subtracting 10 from both sides, we get 5=r. Therefore, the value of r is 5.

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5.

2x<-30
- X
- X
- X>-15
Correct Answer

A. X

Explanation

The given answer, x > -15, is correct because the original inequality states that 2x is less than -30. Dividing both sides of the inequality by 2 gives x < -15. However, since the question asks for the answer in terms of x, we can rewrite the inequality as x > -15. This means that x is any value greater than -15, which satisfies the original inequality.

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6.

12x-5<-29
- X
- X>2
- X
Correct Answer

A. X
7.

6x>-18
- X
- X>-3
- X>3
Correct Answer

A. X>-3

Explanation

The correct answer is x>-3 because when we divide both sides of the inequality by 6, the inequality sign remains the same. Therefore, x is greater than -3.

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8.

-7x>-56
- X
- X>7
- X
Correct Answer

A. X