Solving Percent Problems (chapter 4.4)

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 percent of a number?

Back

To calculate a percent of a number, multiply the number by the percent (in decimal form). For example, to find 5% of 60, calculate 60 * 0.05 = 3.

Front

What does it mean to find the whole in a percent problem?

Back

Finding the whole means determining the original number when given a percent of that number.

Front

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

Back

To find the whole, divide the part by the percent (in decimal form). For example, if 15% of a number is 12, the whole is 12 / 0.15 = 80.

Front

What is 5% of 60?

Back

5% of 60 is 3.

Front

What is 140% of what number is 35?

Back

140% of 25 is 35.

Front

What is 15% of what number is 12?

Back

15% of 80 is 12.

Front

What is 125% of what number is 25?

Back

125% of 20 is 25.

Front

What is 25% of 50?

Back

25% of 50 is 12.5.

Front

How do you convert a percent to a decimal?

Back

To convert a percent to a decimal, divide by 100. For example, 25% becomes 0.25.