Ratios, Rates, and Unit Rates Test

Front

What is a ratio?

Back

A ratio is a comparison of two quantities, showing how many times one value contains or is contained within the other.

Front

What is a rate?

Back

A rate is a specific kind of ratio that compares two different units, such as miles per hour or dollars per gallon.

Front

What is a unit rate?

Back

A unit rate is a rate in which the second quantity is one unit, such as 4 dollars per gallon.

Front

How do you determine if two ratios are equivalent?

Back

Two ratios are equivalent if they simplify to the same fraction or decimal.

Front

If 8 gallons of gas cost $32, what is the unit rate in dollars per gallon?

Back

$4 per gallon.

Front

If John runs 18 miles in 6 hours, how many miles can he run in one hour?

Back

3 miles per hour.

Front

What is the formula for finding a unit rate?

Back

Unit Rate = Total Quantity / Number of Units.

Front

What does 'mpg' stand for in terms of driving?

Back

'mpg' stands for miles per gallon, a measure of fuel efficiency.

Front

How do you solve a proportion?

Back

Cross-multiply the terms and set the products equal to each other.

Front

If Brad drives 527 miles on 17 gallons, how many miles does he drive on one gallon?

Back

31 miles per gallon.