Darnell's car used 8 gallons of gasoline to travel 340 mils. after a mechanic worked on the car, it used 7 gallons of gasoline to travel 350 miles. if the price of gasoline was about 4 dollars per gallon, how much less, to the nearest cent per mile, did it cost to run the car after the mechanic worked on it

It costs $0.01 / mile less than before the mechanic worked on it.

Step-by-step explanation:

Cost to run the car before the mechanic worked on it:

Cost to run the car after the mechanic worked on it:

The difference between both cases is:

1.0

step-by-step explanation:

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