Bluebook SAT Test Digital SAT Math Practice 6

Question 1

A store marks up items by 40%. If the cost price of an item is $50, what is the selling price?

Accepted Answer

$70

Answer

Markup = 40% × $50 = $20; selling price = $50 + $20 = $70.

Question 2

What is the value of (−3)³?

Accepted Answer

−27

Answer

(−3)³ = (−3)(−3)(−3) = (9)(−3) = −27.

Question 3

Two parallel lines are cut by a transversal. One angle measures 65°. What is the measure of its co-interior (same-side interior) angle?

Accepted Answer

115°

Answer

Co-interior angles are supplementary, so the other angle = 180° − 65° = 115°.

Question 4

If the graph of a parabola has x-intercepts at x = 1 and x = 5, what is the x-coordinate of its vertex?

Accepted Answer

3

Answer

The vertex lies on the axis of symmetry, halfway between the x-intercepts: (1 + 5)/2 = 3.

Question 5

In a data set, the mean is 12 and the median is 15. This suggests the distribution is:

Accepted Answer

Skewed left (negatively skewed)

Answer

When mean < median, the distribution is pulled toward lower values, indicating a left (negative) skew.

Bluebook SAT Practice Test