Question

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 gasoline was approximately $4.00 per gallon , how much less to the nearest cent per mile , did it cost to run the car after the mechanic worked on it ?

Answer 1

After the mechanic it cost $1.88 cheaper to run the car