Question

Your family is going to visit a relative who lives 389.2 mi from your home. The family car gets 29.6 miles per gallon of gasoline. If the price of a gallon of gas is $2.16, about how much will the gasoline for the trip cost?

Answer 1

$28.40

Explanation:

You want the cost of gas for a 389.2 mile trip in a vehicle averaging 29.6 miles per gallon using gas costing $2.16 per gallon.

Cost

The cost can be figured by converting miles to dollars using the given conversion factors.

`(389.2\text{ mi})*\frac{1\text{ gal}}{29.6\text{ mi}}*\frac{\$2.16}{1\text{ gal}}=(\$2.16\cdot389.2)/(29.6)=\boxed{\$28.40}`

The gasoline for the trip will cost about $28.40.