June drove for two hours at an average speed of 70 miles per hour, then drove another 90 minutes at an average speed of 65 miles per hour.
If her vehicle gets 25 miles per gallon on the highway in this speed range, about how many gallons of gas did she use for the trip?
- 5.4 gallons
- 8.2 gallons
- 8.4 gallons
- 9.5 gallons
Answer(s): D
Explanation:
First calculate the distances driven during the two legs of the trip.
Leg 1: 2 hours × 70 mph = 140 miles
Leg 2: 1.5 hours × 65 mph = 97.5 miles
140 miles + 97.5 miles = 237.5 miles
Now divide the total distance traveled by the car's gas mileage rate.
237.5 miles 4 ÷ 25 mpg = 9.5 gallons
Reveal Solution Next Question