Math Test Set 11

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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

Math-Evaluate expression

2. Evaluate the expression at the given value of x.

\(−3x^{2}− 6x + 3\) at \(x = 7 \)

A.-186

B.186

C.-198

D.198

Question 2 of 10

3. Simplify the given expression.

−| − 40|

A.-40

B.40

C.20

D.-20

Question 3 of 10

4. −6x − 1 at x = 1

A.-7

B.7

C.-6

D.12

Question 4 of 10

Math-Solution of equations

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

−32x + 7y = −238
8x − 4y = 64

A.(7,-2)

B.(7,2)

C.(6,-2)

D.(7,-6)

Question 5 of 10

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

x = 19 + 7y
3x − 3y = 3

A.(-2,-3)

B.\( \frac{2}{3}\)

C.-(2,3)

D.(-4,6)

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-Slope

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

−7x + 7y = 63

y = 6 − 2x

A.(-1, 8)

B.-(1,8)

C.(1.6)

D.(2,16)

Question 8 of 10

Math-Percent to decimal

9. Convert the given percent to a decimal.

8%

A.0.08

B.0.8

C.0.008

D.80

Question 9 of 10

Math-Percent of number

10. 37.5% of what number is 57?

A.152

B.57

C.150

D.60

Question 10 of 10

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