Question

Four gallons of gasoline cost $17.56. What is the price per gallon?

Answer 1

write a relationship between the cost and the amount of gasoline

`\begin{gathered} 4gal\Rightarrow17.56 \\ 1gal\Rightarrow x \end{gathered}`

solve for the x

`\begin{gathered} x=(1gal\cdot17.56)/(4gal) \\ x=4.39 \end{gathered}`

the price per gallon is $4.39