Ratios and Percents

Front

What is a Ratio?

Back

A ratio is a comparison of two quantities.

Front

What percent is represented by 62 out of 100?

Back

62%.

Front

If Jenny has 3 guitars and Steve has 4 guitars, what is the ratio of Steve's guitars to Jenny's guitars?

Back

The ratio is 4:3.

Front

What percent is represented by 38 out of 100?

Back

38%.

Front

What is the formula to convert a fraction to a percent?

Back

Multiply the fraction by 100.

Front

If a 10-by-10 grid has 65 shaded squares, what percent is shaded?

Back

65%.

Front

What does it mean if a ratio is expressed as 1:4?

Back

For every 1 part of the first quantity, there are 4 parts of the second quantity.

Front

How do you find the part of a whole represented by a percent?

Back

Multiply the whole by the percent (as a decimal).

Front

What is the percent equivalent of the fraction 1/2?

Back

50%.

Front

If a class has 20 students and 5 are absent, what percent of the class is present?

Back

75%.