Question

Darren paid $30.60 for nine gallons of gasoline. His car travels an average of 100 miles on 4 gallons. How much did it cost Darren to drive 75 miles? Explain how you found your answer.

Answer 1

$30.60 / 9 gallons = $3.4 / gallon

100 miles / 4 gallons = 25 miles / gallon

75 miles / 25 miles = 3

$3.4 multiplied by 3 = $10.2

It costs Darren $10.2 to drive 75 miles