Question

A​ person's car uses 5 gal of gasoline to travel 132 mi. He has 3 gal of gasoline in the​ car, and he wants to know how much more gasoline he will need to drive 300 mi. If we assume that the car continues to use gasoline at the same​ rate, how many more gallons will he​ need

Answer 1

132/5 = 26.4 miles per gallon

he has 3 gallons already.....3(26.4) = 79.2.....those 3 gallons will take him 79.2 miles.

300 - 79.2 = 220.8.....thats how many miles he has left to go

220.8 / 26.4 = 8.36....so he needs 8.36 gallons of gas <==