Question

Hello! I really need help it will mean a lot if anyone considers.

Answer 1

Given

8 gallons of gasoline is required to travel 340 miles.

After mechanic repair the car, 7 gallons of gasoline is required to travel 350 miles.

The price of gallon is 4 dollar per gallon.

Step-by-step explanation

To determine the cost nearest cent per mile to run the car after the mechanic worked,

`\begin{gathered} ((8)/(340)-(7)/(350))*4=((8)/(340)-(1)/(50))*4 \\ ((32)/(340)-(4)/(50))=(1600-1360)/(340*50) \\ (1,600-1,360)/(340*50)=(240)/(340*50)=(24)/(1700) \\ \end{gathered}`

Simplify it again,

`(24)/(1700)=(6)/(425)=0.0141`

Answer

Hence the cost is 0.0141 cent per mile.