Glencoe Math: Course 2, Volume 1
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Glencoe Math: Course 2, Volume 1 View details
1. Rates
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Exercise 19 Page 15

A rate is a special type of ratio that compares quantities with different kinds of units. A unit rate is a rate that has been reduced to have a denominator of 1 unit.

32 miles per gallon

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A rate is a special type of ratio that compares quantities with different kinds of units. A unit rate is a rate that has been reduced to have a denominator of 1 unit. We are given the following rate. 144milesin 4.5gallons Let's write this rate as a fraction. 144miles/4.5gallons To find the unit rate, we need to write an equivalent rate with a denominator of 1 gallon. Let's ignore the units for simplicity.
144/4.5
144/ 4.5/4.5/ 4.5
32/4.5/4.5
32/1
Finally, we got the unit rate. 144miles/4.5gallons = 32miles/1gallon The unit rate is 32 miles per gallon.