Math Practice Test Set 5 - My Career Tools

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1. Which equation is a direct variation?

A.y = − 0.7x

B.y= \(\frac{21}{x}\)

C.y-x=4

D.y=3x+2

Question 1 of 10

Math-Word problems

2. Eight more than two times an unknown number is 0. Find the unknown number.

A.-4

B.4

C.-2

D.2

Question 2 of 10

Math-Evaluate expression

3. Simplify the given expression.

−(−50)

A.50

B.45

C.-50

D.1

Question 3 of 10

4. \(-3x^{2} - 6x + 3\) at \(x = 2\)

A.-21

B.21

C.26

D.-42

Question 4 of 10

Math- Equations

5. Solve the given equation for x.

−x + 8 = 13

A.-5

B.5

C.-10

D.10

Question 5 of 10

Math-Percent to decimal

6. Convert the given percent to a decimal.

155%

A.1.55

B.0.155

C.15.5

D.0.0155

Question 6 of 10

7. Convert the given percent to a decimal.

28%

A.0.28

B.2.8

C.0.028

D.0.0028

Question 7 of 10

Math-Solution of equations

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

2x + 3y = −2
−5x + 5y = 2

A.\((\frac{-16}{25}, \frac{-6}{25}) \)

B.\((\frac{-16}{25}, \frac{6}{25}) \)

C.\((\frac{16}{25}, \frac{-6}{25}) \)

D.\((\frac{-18}{25}, \frac{-6}{30}) \)

Question 8 of 10

Math-Slope

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

P(11, 1), Q(−1,−1)

A.\(\frac{1}{6}\)

B.\(\frac{6}{2}\)

C.\(\frac{2}{6}\)

D.\(-\frac{1}{6}\)

Question 9 of 10

Math-Combining Like Terms

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

\(−14x^{3} + 16xy + 5x^{3} + 8xy\)

A.\(-9x^{3} + 24xy \)

B.\(-10x^{3} + 25xy\)

C.\(-9x^{3} + 24xy\)

D.\(9x^{3} + 24xy\)

Question 10 of 10