Mathematical Ratios and Rates

Front

equivalent ratios

Back

Two ratios A:B and C:D are equivalent ratios if there is a nonzero number c such that C = c X A and D = c X B.

Front

percent

Back

A percent is a fraction with a denominator of 100. A number followed by the percent symbol, N%, indicates N over 100.

Front

rate

Back

A quantity that describes a ratio relationship between two quantities.

Front

ratio

Back

An ordered pair of numbers that are not both zero.

Front

ratio relationship

Back

The set of all ratios that are equivalent ratios.

Front

unit rate

Back

When a rate is written so that the second of the two quantities is 1 unit, the unit rate is the numerical part of the rate.

Front

value of the ratio

Back

For a ratio A:B, the value of the ratio is the quotient A over B as long as B is not zero.