Answer:
Blue car = 28.4 miles per gallon
Red car = 34 miles per gallon
Explanation:
You are running a fuel economy study. One of the cars you find is blue. can travel 35 1/2 miles on 1 1/4 gallons of gasoline. Another car is red. It can travel 27 1/5 miles on 4/5 gallons of gasoline.
What is the unit rate for miles per gallon for each car?
Blue car:
Travels 35 1/2 miles on 1 1/4 gallons of gasoline
Miles per gallon of the blue car = Total miles / total gallons
= 35 1/2 miles ÷ 1 1/4 gallons
= 71 / 2 miles ÷ 5/4 gallons
= 71/2 × 4/5
= 284 / 10
= 28.4 miles per gallon
Red car:
Travels 27 1/5 miles on 4/5 gallons of gasoline
Miles per gallon of the red car = Total miles / total gallons
= 27 1/5 miles ÷ 4/5 gallons
= 136 / 5 ÷ 4/5
= 136/5 × 5/4
= 136 / 4
= 34 miles per gallon