Darnell's car used 8 gallons of gasoline to travel 340 miles. after a mechanic worked on the car, it used 7 gallons of gasoline to travel 350 miles. If the price of the gasoline was approximately $4.00 per gallon, how much lest to the nearst cwnt per mile, did it cost to run the car after the mechanic worked on it?
BEFORE: Total cost: $4*8Gallons=$32 for 340 Miles. $32/340miles=$.09 per Mile AFTER: Total cost: $4*7Gallons=$28 for 350 Miles. $28/350Miles= $.08 per Mile Cost of mile before-Cost of mile after=Answer .09-.08=.01 ANSWER:1 cent difference