Calculate the cost of gasoline for a 420-mile trip if your car averages 20 miles/gallon of gas, and the gas cost 0.95/gallon.

Answer : The cost of gasoline for a 420-mile trip is, $19.95

Solution :

As, 20 mile distance covered by 1 gallon of gas

So, 420 mile distance covered by of gas

Now we have to calculate the cost of gasoline.

As, 1 gallon of gas cost = $0.95

So, 21 gallon of gas cost =

Therefore, the cost of gasoline for a 420-mile trip is, $19.95

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