Math Test Set 11

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

A.\(\frac{1}{2}\)

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

C.0

D.\(\frac{3}{4}\)

Question 1 of 10

2. Which equation is a direct variation?

A.y = − 0.7x

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

C.y-x=4

D.y=3x+2

Question 2 of 10

Math-Solution of equations

3. 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 3 of 10

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

2x + 2y = 4
3x − 5y = 3

A.\((\frac{13}{8}, \frac{3}{8}) \)

B.\(-(\frac{13}{8}, \frac{3}{8}) \)

C.\((\frac{13}{9}, \frac{3}{9}) \)

D.\(-(\frac{13}{9}, \frac{3}{8}) \)

Question 4 of 10

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

9x − 9y = −63
2x − 6y = −34

A.(-2, 5)

B.(-3, 6)

C.(-2, 7)

D.(-1, 5)

Question 5 of 10

Math-Percent of number

6. 126.4% of what number is 158?

A.125

B.158

C.120

D.250

Question 6 of 10

Math-Evaluate expression

7. Evaluate a + |b−c| at a = −19.55, b = 5.62, and c = −5.21.

A.-8.72

B.8.72

C.-19.55

D.10.83

Question 7 of 10

Math-Word problems

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

A.3

B.-3

C.6

D.-6

Question 8 of 10

9. The number −6 is 2 more than an unknown number. Find the unknown number.

A.-8

B.8

C.-4

D.4

Question 9 of 10

Math-Exponents

10. Simplify the given exponential expression.

\(2^{5} \cdot 2^{3}\)

A.\(2^{8} \)

B.\(-2^{8} \)

C.\(2^{1} \)

D.\(1^{2} \)

Question 10 of 10

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