ACT Math Practice

Front

What is the measure of angle H if angle B = 40° and angle W = 75°?

Back

Angle H = 65° (Using the property that the sum of angles in a triangle is 180°).

Front

Calculate (y-x)³ when x = 5 and y = 1.

Back

(y-x)³ = -64.

Front

What is the smallest positive integer divisible by 3, 5, and 6?

Back

The smallest positive integer is 30.

Front

If 30% of 7,340 students come from families with only one child, how many do not come from such families?

Back

5,138 students do not come from families with only one child.

Front

Convert the equation 3y + 2x = 24 to slope-intercept form.

Back

y = -⅔x + 8.

Front

What is the formula for the slope-intercept form of a linear equation?

Back

y = mx + b, where m is the slope and b is the y-intercept.

Front

How do you find the slope of a line given two points (x1, y1) and (x2, y2)?

Back

Slope (m) = (y2 - y1) / (x2 - x1).

Front

What is the least common multiple (LCM) of 3, 5, and 6?

Back

The LCM is 30.

Front

What is the sum of the interior angles of a triangle?

Back

The sum of the interior angles of a triangle is 180°.

Front

How do you calculate the percentage of a number?

Back

Percentage = (part/whole) × 100.