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ACT Mathematics Practice Questions

1.   A weight estimator at a fair guess that a women weighs 167 lbs. She actually weighs 179. The percent of error in this estimate is?

A. 5 ¹/₄ %

B. 6 ⁷/­₁₀%

C. 11 ¹²/₁₇%

D. 10%.

2.   If the outer diameter of a plastic pipe is 4.25 cm, and the inner diameter of a plastic pipe is 3.13 cm, the thickness of the plastic in centimeters is

A. .56

B.1.12

C. 2.24

D. 2.98

3.   (x+3)(x+5)=

A. x² + 15

B. x = 8

C. x + 8

D. x² + 8x + 15

4.   The points (2,2) and (3,y) are Ö26 apart. What does y equal?

A. 2

B. 3

C. 5

D. 7 

Answer Key Mathematics Problems

1.     B

2.     A

3.     D

4.     D