Math Test Set 11

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1. If y varies inversely as x and y = 8 when x = 3, find the value of x when y = 12.

A.8

B.-8

C.2

D.-2

Question 1 of 10

2. \(\frac{a-1}{(a)^{2}-1}\)

Simplify.

A.\(\frac{1}{a}, a ≠ 0\)

B.\(\frac{1}{a-1}, a ≠ - 1\)

C.\(\frac{1}{1-a}, a ≠ 1\)

D.\(\frac{1}{a+1}, a ≠ 1\)

Question 2 of 10

Math-Solution of equations

3. Use the elimination method to solve each of the following systems.

x + 9y = 73
−4x − 5y = −44

A.(1, 8)

B.- (1, 8)

C.\((\frac{2}{16}) \)

D.8

Question 3 of 10

4. Use the elimination method to solve each of the following systems.

x + 8y = 41
−5x − 9y = −50

A.(1, 5)

B.- (1, 5)

C.1 (1, 5)

D.(1, - 5)

Question 4 of 10

5. Use the elimination method to solve each of the following systems.

9x + 4y = −4
−7x − 9y = 3

A.\((\frac{-24}{53}, \frac{1}{53}) \)

B.\((\frac{24}{53}, \frac{1}{53}) \)

C.\((\frac{24}{53}, \frac{-1}{53}) \)

D.\((\frac{-25}{50}, \frac{1}{50}) \)

Question 5 of 10

6. Use the substitution method to solve each of the following systems.

3x − 4y = −43
−3x + y = 22

A. (-5, 7)

B.-(-5, 7)

C.35

D.-35

Question 6 of 10

Math-Combining Like Terms

7. Combine like terms by first rearranging the terms, then using the distributive property to factor out the common variable part, and then simplifying.

−13 + 16m + m + 16

A.3 + 17m

B.5 + 17m

C.-3 + 17m

D.3 - 17m

Question 7 of 10

Math-Word problems

8. The quotient of two integers is 9. One of the integers is −8. Find the other integer.

A.-72

B.72

C.-35

D.35

Question 8 of 10

9. Mark’s scores on his first three exams are 79, 84, and 71. What must Mark score on his next exam to average 74 for all four exams?

A.62

B.-62

C.63

D.-63

Question 9 of 10

Math-Percent to decimal

10. Convert the given percent to a decimal.

155%

A.1.55

B.0.155

C.15.5

D.0.0155

Question 10 of 10

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