Estimate the number of gallons of gasoline consumed by the total of all automobile drivers in the U. S., per year. Suppose that there are about 3 * 10^8 people in the United States, approximately half of the them have cars, each car drives an average of 12,000 mi per year, and consumes a gallon of gasoline for each 20 mi?

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Physics

26 October, 01:00

Estimate the number of gallons of gasoline consumed by the total of all automobile drivers in the U. S., per year. Suppose that there are about 3 * 10^8 people in the United States, approximately half of the them have cars, each car drives an average of 12,000 mi per year, and consumes a gallon of gasoline for each 20 mi?

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Jaida Mathis · Answer 1

3 x 108 is roughly 300 people. Half of them have cars. Half of 300 = 150. 150 x 12000 = 1,800,000 miles driven. Each car gets 20mpg. Solve for the # of gallons consumed.