SOLUTION: if a truck can travel 240 miles on 12 gallons of gas, how many gallons will it need to travel 400 miles

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Question 819576: if a truck can travel 240 miles on 12 gallons of gas, how many gallons will it need to travel 400 miles
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
12/240=x/400
240x=400*12
x=4800/240
x=20 gal