Math Practice Test Set 4 - My Career Tools

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1. The amount varies inversely to y. Which equation expresses the given statement?

A.y = kx

B.x = ky

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

D.-x = \(\frac{k}{y}\)

Question 1 of 10

2. A garden hose is used to fill a swimming pool. In 15 minutes, 195 gallons of water are added to the pool and this rate (gallons per minute) remains constant. If this information was graphed, what would be the slope of the graph?

A.\(\frac{15}{195} \)

B.13

C.\(\frac{1}{3} \)

D.\(\frac{39}{3} \)

Question 2 of 10

3. Given the following set of numbers {1,1,1,1,2,3,4,5,5,5,5,6,7,8,8,8,8,8,9, 10} what is the probability of choosing a prime number, given that a factor of 36 is chosen?

A.\(\frac{7}{20}\)

B.\(\frac{2}{5}\)

C.\(\frac{1}{3}\)

D.\(\frac{2}{9}\)

Question 3 of 10

Math-Evaluate expression

4. Evaluate the expression at the given values of x and y.

\(-5x^{2} + 2y^{2}\) at \(x = 4\) and \(y = 2\)

A.-72

B.72

C.-35

D.78

Question 4 of 10

5. \(-5x^{2} + 2xy - 4y^{2}\) at \(x = 5\) and \(y = 0\)

A.-125

B.125

C.115

D.-115

Question 5 of 10

Math-Percent of number

6. What number is 89.6% of 125?

A.112

B.110

C.54

D.122

Question 6 of 10

Math-Percent to decimal

7. Convert the given percent to a decimal.

124%

A.1.24

B.12.4

C.0.124

D.124

Question 7 of 10

8. Convert the given percent to a decimal.

8%

A.0.08

B.0.8

C.0.008

D.80

Question 8 of 10

Math-Solution of equations

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

−x + 4y = 22
8x + 7y = −20

A.(-6, 4)

B.(6, 4)

C.(-6, -4)

D.-(-12, 8)

Question 9 of 10

Math- Equations

10. Solve the equation.

2(2x − 9) + 5 = −7(−x − 8)

A.-23

B.23

C.-46

D.25

Question 10 of 10