Math Practice Test Set 10

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1. Suppose y varies inversely with x and x = 12 when y = 3. What is the equation of the inverse variation?

A.\(\frac{y}{x}\) = 36

B.y = \(\frac{12}{3}\)

C.y = \(\frac{36}{x}\)

D.12 = \(\frac{3}{y}\)

Question 1 of 10

2. Where is the output of the function graphed below less than 2? Assume the horizontal axis represents and the vertical axis represents.

A.x < 2

B.−2 < y < 2

C.−2 < x < 2

D.y < 2

Question 2 of 10

3. Jane has a collection of marbles, consisting of 3 red, 4 green, 4 blue, and 3 orange marbles. She has offered two of her friends, David and Malcolm, that they may take one marble each. What is the probability that Malcolm chooses a red marble, given that David has already chosen a red marble?

 

A.\(\frac{1}{7}\)

B.\(\frac{2}{13}\)

C.\(\frac{3}{14}\)

D.\(\frac{1}{4}\)

Question 3 of 10

Math-Distributive Property

4. Use the distributive property to expand the given expression.

\(10s^{2}(−10s^{3} + 2s^{2} + 2s+ 8)\)

A.\(-100s^{5}+ 20s^{4} + 20s^{3} + 80s^{2}\)

B.\(100s^{5}+ 20s^{4} + 20s^{3} + 80s^{2}\)

C.\(-100s^{5} - 20s^{4} + 20s^{3} + 80s^{2}\)

D.\(100s^{5} + 20s^{4} + 20s^{3} - 80s^{2}\)

Question 4 of 10

Math-Slope

5. Calculate the slope of the line passing through the points P and Q. Be sure to reduce your answer to lowest terms.

P(0, 11), Q(16,−11)

A.\(-\frac{11}{8}\)

B.\(1\frac{3}{8}\)

C.\(\frac{11}{8}\)

D.\(\frac{8}{11}\)

Question 5 of 10

Math-Word problems

6. The number −15 is −5 times larger than an unknown number. Find the unknown number.

A.3

B.-3

C.6

D.-6

Question 6 of 10

Math-Percent of number

7. 60% of what number is 90?

A.150

B.90

C.75

D.145

Question 7 of 10

8. What number is 85% of 100?

A.85

B.0.85

C.83

D.190

Question 8 of 10

Math- Equations

9. Solve the equation.

7x + 11 = 16 − 18x

A.\(\frac{1}{5}\)

B.\(-\frac{1}{5}\)

C.5

D.\(\frac{1}{15}\)

Question 9 of 10

Math-Solution of equations

10. 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 10 of 10

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