Assume a gasoline price of $3.66 per gallon. What is the gasoline cost for a 2200-mile trip at an average speed of 54 miles per hour? What is the gasoline cost at 75 miles per hour?

Answer 1

I believe the question is regarding miles per gallon, not miles per hour.

With 54 miles per gallon, you would need to first determine how many gallons of gas would be needed to make the 2200-mile trip. So divide 2200 by 54 and you will get 40.740740...(repeating 740). This can be written as a fraction of 40 20/27. Now that we know how many gallons of gas are being used, we can multiply it by the cost per gallon (3.66) in order to determine the total cost of gasoline for the trip.

Price per gallon * gallons required for the trip = total cost of gasoline for the trip

3.66 * 40 20/27 = $149.11

You would repeat these steps for 75 miles per gallon. At 75 miles per gallon it would require 29 1/3 gallons of gas to complete the trip. So multiply 29 1/3 by the price of gas to determine the total gas cost for the trip.

3.66 * 290 1/3 = $107.36