ACT Prep Math

Front

What is average speed?

Back

Average speed is the total distance traveled divided by the total time taken. It is usually expressed in miles per hour (mph).

Front

How do you calculate average speed?

Back

Average speed = Total distance / Total time.

Front

What is the formula to solve for x in a linear equation?

Back

To solve for x in a linear equation, isolate x on one side of the equation using inverse operations.

Front

What is a rational number?

Back

A rational number is any number that can be expressed as the quotient or fraction of two integers, where the denominator is not zero.

Front

What is the difference between rational and irrational numbers?

Back

Rational numbers can be expressed as fractions, while irrational numbers cannot be expressed as simple fractions.

Front

What does it mean for a number to be equivalent?

Back

Two expressions are equivalent if they have the same value for all values of their variables.

Front

How do you find the percentage of a number?

Back

To find the percentage of a number, multiply the number by the percentage (as a decimal). For example, 80% of n is calculated as 0.80 * n.

Front

What is the relationship between sales in consecutive years if the second year is 3 million more than the first?

Back

If sales in the first year are x million, then sales in the second year are x + 3 million.

Front

How do you express 80% of n in different forms?

Back

Front

What is the first step in solving the equation 2x + 3 = 3x - 4?

Back

The first step is to isolate x by moving all terms involving x to one side and constant terms to the other side.