What unit rate is equivalent to 17 miles per gallon?

If you would like to know which unit rate is equivalent to 17 miles per gallon, you can calculate this using the following steps:

17 miles ... x gallon = ?

51 miles ... 3 gallons

x = 17 * 3 / 51 = 1 gallon

17 miles ... x gallon = ?

34 miles ... 4 gallons

x = 17 * 4 / 34 = 2 gallons

The correct result would be: fifty-one miles over three gallons.