Question

3. A vehicle uses 15 gallons of gasoline to travel 13 miles. At this rate, how many miles can the

vehicle travel per gallon of gasoline?​

Answer 1

1. Start by identifying what the question wants so we are looking for miles per 1 gallon.
2. Set up a statement. When the word “per” is being used it relates to a fraction or a ratio. In this question we need to find how many miles a single gallon will give us. So set it up as miles/gallons
3. Plug in your numbers. Now our statement is 13 miles/15 gallons
4. Calculate. So do 13/15 which equals 0.86 miles per 1 gallon.
Tip: always add in words into your calculations. Mainly the units you are using so you can quickly look and know what the units will be. This will help you in upper placement math as well

Answer 2

Vehicle can travel 13/15 = 0.87 miles per gallon

Explanation:

Using Direct ratio as increase of fuel increases mileage

gallons miles

15 13

1 x

applying cross product

x*15=13*1

x= 13/15 miles or 0.87 miles