## Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

$\frac{1}{30}$ gallons of gasoline per mile driven This is around $0.033$ gallons of gasoline per mile driven.
After driving 60 miles, the car has consumed 2 gallons of gasoline. After driving 300 miles, the car has consumed 10 gallons of gasoline. The increase in gasoline consumed is: $=10-2=8$ gallons The increase in distance driven is $=300 - 60=240$ miles driven Thus, the average rate is: $=\dfrac{8\text{ gallons of gasoline}}{240 \text{ miles driven}}=\frac{1}{30}$ gallons of gasoline per mile driven