Rates

Front

What is the rate of change?

Back

The rate of change is a measure of how much a quantity changes in relation to another quantity. For example, if a tree grows 3 inches every 2 months, the rate of change is 3 inches per 2 months.

Front

Write the statement as a rate: Lilly records 65 movies onto 5 DVDs.

Back

Front

Which is the slowest reading rate?

Back

The slowest reading rate is 3 pages in 9 minutes.

Front

Find the rate of change: -2 minutes per gallon, -20 minutes per gallon, -2 gallons per minute, -20 gallons per minute.

Back

The rate of change is -2 gallons per minute.

Front

It cost me $46.80 to fill my 13-gallon gas tank. What was the price of gas per gallon?

Back

The price of gas per gallon is $3.60.

Front

Define 'rate' in mathematical terms.

Back

A rate is a ratio that compares two different kinds of quantities, often expressed as a fraction.

Front

What is a unit rate?

Back

A unit rate is a rate in which the second quantity is 1. For example, if a car travels 300 miles in 5 hours, the unit rate is 60 miles per hour.

Front

How do you calculate a rate?

Back

Front

What is the difference between a rate and a ratio?

Back

A rate compares two different units, while a ratio compares two quantities of the same unit.

Front

If a car travels 150 miles in 3 hours, what is its average speed?

Back