Percent Proportions Review #1

Front

What is a percent?

Back

A percent is a ratio expressed as a fraction of 100. It represents a part of a whole.

Front

How do you calculate a percentage of a number?

Back

To calculate a percentage of a number, multiply the number by the percentage (in decimal form). For example, to find 40% of 230, calculate 230 * 0.40.

Front

What is the formula for finding the part in a percent problem?

Back

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

Front

What is the whole in a percent problem?

Back

The whole is the total amount or quantity that the percent is being calculated from.

Front

What is the part in a percent problem?

Back

The part is the portion of the whole that corresponds to the given percent.

Front

If 78 is what percent of 450, how do you find the percent?

Back

Use the formula: Percent = (Part / Whole) × 100. Here, Percent = (78 / 450) × 100 = 17%.

Front

How do you find the total number when given a percent and the part?

Back

Use the formula: Whole = Part / (Percent / 100).

Front

What is 95% of 9,500?

Back

To find 95% of 9,500, calculate 9,500 × 0.95 = 9,025.

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 multiply by 100.

Front

What percent did Shirley get if she spelled 12 out of 15 words correctly?

Back

Percent = (12 / 15) × 100 = 80%.