Question

Jamie drove home from college for the summer break. The gas tank on his car holds 16 gallons of gas and he used 7/8 of the gas to get home. If he paid $3.25 per gallon of gas, exactly how much money did he spend on the gas needed to get home?

Answer 1

The gas in his car is 16 gallons and he used 7/8 of the gas to get home. The cost of the gas per gallon is $3.25. The cost of the gas he used to get home can be calculated below.

`\begin{gathered} (7)/(8)*16=14gallons \\ \end{gathered}`

He used 14 gallons of gas to get home . The cost of the gas used can be calculated below

`\begin{gathered} 1\text{gallons }=\text{ \$3.25} \\ 14\text{gallons}=\text{?} \\ \text{cross multiply} \\ \text{cost}=14*3.25 \\ \text{cost}=45.5\text{dollars} \end{gathered}`

cost of gas needed to get home = $45.5