Question

An airplane flying a distance of 750 miles used 60 gallons of gasoline. How many gallons will it need to travel 2,500 miles? a) 150 gallons b) 200 gallons c) 250 gallons d) 300 gallons

Answer 1

b) 200 gallons

Explanation:

Since the distance flown (miles) is proportional to the amount of gas (gallons), we can determine how many gallons of gas (x) the airplane will need to travel 2500 miles using proportions:

750 mi / 60 gal = 2500 mi / x gal

750/60 = 2500/x

(12.5 = 2500/x) * x

(12.5x = 2500) / 12.5

x = 200

Thus, the airplane will need 200 gallons of gas to travel 2500 miles.