Question

A car can travel 396 miles on 22 gallons of gasoline.how much gasoline will it need to go 468 miles?

Answer 1

28.442 gallons for 468 miles

Explanation:

First, make a proportion.

Let g be the amount of gasoline

`(396)/(22)=(468)/(g)`

Solve the proportion by cross multiplying.

362g=468×22

362g= 10296

Now divide by 362

g=10296/362= 28.442

Answer 2

396 miles / 22 gallons = 18 miles per gallon

468 miles / 18 miles = 26 gallons of gasoline

What I did is I took the number of miles and divided it by the number of gallons to find how many gallons of gasoline were used per mile. Then I took that number of miles and divided 468 by it because that's the number of gallons we are trying to find. We ended up with 26 gallons of gasoline for 468 miles.