Rates and Percents

Front

What is a unit rate?

Back

A comparison of two measurements with a denominator of 1.

Front

What is simple interest and how is it calculated?

Back

Interest calculated only on the principal, using the formula I = prt, where I is interest, p is principal, r is rate, and t is time.

Front

What is a rate in terms of measurement?

Back

A comparison between two quantities with different units of measure.

Front

What does percent decrease measure?

Back

The measure of percent change in which something loses value.

Front

What does percent increase measure?

Back

The measure of percent change in which something increases in value.

Front

How do you calculate percent change?

Back

Percent change is calculated by taking the difference between the new value and the old value, dividing by the old value, and then multiplying by 100.

Front

What is the formula for calculating simple interest?

Back

I = prt, where I is interest, p is principal, r is rate, and t is time.

Front

What is the difference between a rate and a unit rate?

Back

A rate compares two quantities with different units, while a unit rate compares two quantities with a denominator of 1.

Front

How do you express a percent as a decimal?

Back

To express a percent as a decimal, divide the percent by 100.

Front

What is the relationship between fractions and percents?

Back

A percent is a fraction with a denominator of 100.