Question

a car travels 420 miles using 15 gallons of gas. What is the unit rate ? How many miles does the car go with one gallon of gas ?

Answer 1

The distance is measured in miles, and the fuel consumption is measured in gallons of gas, so the unit rate of the distance travelled per amount of fuel is miles per gallon.

To find how many miles the car does with one gallon of gas, we just need to divide the distance travelled (420 miles) by the number of gallons of gas used (15 gallons):

`(420)/(15)=28`

So the car does 28 miles per gallon of gas.