Lanier review 30

Question

If you drive 128 miles and have 14 gallons of gas remaining in your tank. Then you continue driving, and calculate that after driving 243 miles you have 9 gallons left.

What is your rate?

   miles per gallo

Answer 1

To solve this problem, we must calculate the amount of gasoline used to travel a given distance.

Initial mileage is 128 final mileage is 243 mileage driven is 243 - 128 = 115 miles

Initial fuel is 14 gallons final fuel is 9 gallons fuel used in 5 gallons

Therefore the miles per gallon is 115 miles / 5 gallons = 23 miles / gallon

Answer 2

If you drive 243 miles and have 9 gallons of gas left that means you drove 115 miles ( subtract 128 from 243) and burned 5 gallons of gas ( 14 - 9). This means the rate is 23 miles per gallon of gasoline ( divide 115 by 5).