Rates, Ratios, proportions and percents

Front

Convert 4/5 to a percent:

Back

80%

Front

In a room, there are 8 boys to 12 girls. What is the ratio of girls to boys?

Back

3 to 2

Front

What is 50% of 15?

Back

7.5

Front

Which ratio is different from the others: 2 to 13, 13 : 2, 2 :13, 2/13?

Back

13 : 2

Front

To rewrite a percent as a fraction: Rewrite the percent using ________ of 100.

Back

denominator

Front

What is a ratio?

Back

A comparison of two quantities by division.

Front

What is a proportion?

Back

An equation that states two ratios are equal.

Front

How do you convert a fraction to a percent?

Back

Multiply the fraction by 100.

Front

What is 25% of 200?

Back

50

Front

If a recipe calls for 2 cups of flour and you want to make half the recipe, how much flour do you need?

Back

1 cup of flour.