Question

Gas mileage is the number of miles you can drive on a gallon of gasoline. A test of a new car results in 490 Miles's on 10 gallons of gas. How far could you drive on 45 gallons of gas? What is the cars gas mileage. Plz answer both questions and explain how to do it! Thnx

Answer 1

Gas Mileage= 49 miles per gallon
Explanation- You have to divide the number of miles (490) by the amount of gallons used (10).
490 divided by 10 equals 49

First question= 2,205 miles
Explanation- Once you know what the unit rate (gas mileage) is then you can just multiply the amount of miles on 1 gallon by 45 gallons.
49 multiplied by 45 equals 2,205

Answer 2

Since it could drive 49 miles on 1 gallon, and this is also it's gas mileage, (because 490/10=49) it could drive 45 times more on 45 gallons than on one. So, we multiply 45 by 49 to get 2209 gallons on 45 gallons of gas.