Kelvin'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?

Question

Pranav Jenkins

Mathematics

21 March, 18:22

Kelvin'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?

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Maxwell Bradley · Answer 1

Before the repair: 340 miles/8 gallons = 42.5 m/g 42.5 m/g/$4 per gallon = $10.63

After the repair: 350 miles/7 gallons = 50m/g 50m/g/$4 per gallon=$12.50

$12.50-$10.63 = $1.87

He saves $1.87 per mile