SOLUTION: A car uses one gallon of gasoline for every 20 miles it travels. If a gallon of gasoline costs $3.98, how much with the gas cost, to the nearest dollar, to travel 180 miles?

Question 872806: A car uses one gallon of gasoline for every 20 miles it travels. If a gallon of gasoline costs $3.98, how much with the gas cost, to the nearest dollar, to travel 180 miles?
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
(# of gallons)/(# of miles) = (# of gallons)/(# of miles)

(1 gallon)/(20 miles) = (x gallons)/(180 miles)

1/20 = x/180

1*180 = 20x

180 = 20x

20x = 180

x = 180/20

x = 9

It takes 9 gallons of gas to drive 180 miles

(9 gallons)*(3.98 dollars/1 gallon) = 9*3.98 dollars = 35.82

Round to the nearest dollar: 35.82 ---> 36

It costs $36 to travel 180 miles
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