Proportion Percent equations

Front

What is a proportion?

Back

A proportion is an equation that states that two ratios are equal.

Front

What is a percent?

Back

A percent is a ratio expressed as a fraction of 100.

Front

How do you calculate a percentage of a number?

Back

To calculate a percentage of a number, multiply the number by the percentage (as a decimal). For example, to find 15% of 82, calculate 82 * 0.15 = 12.3.

Front

What is the formula to find the percent of a number?

Back

The formula is: Percent = (Part/Whole) * 100.

Front

What is the part in a percent problem?

Back

The part is the portion of the whole that you are interested in finding the percentage of.

Front

What is the whole in a percent problem?

Back

The whole is the total amount or quantity that the part is taken from.

Front

How do you convert a fraction to a percent?

Back

To convert a fraction to a percent, divide the numerator by the denominator and then multiply by 100.

Front

What is 20% of 75?

Back

15

Front

What percent of 29 is 3?

Back

10.3%.

Front

What percent of 12 is 9?

Back

75%.