cmbachu10 cmbachu10
  • 02-01-2018
  • Mathematics
contestada

a car travels at 180 miles on 12 gallons of gas at this rate how many gallons will it need to travel 420 miles

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altavistard
altavistard altavistard
  • 02-01-2018
Your end result has to come out with the unit "gallons."

Write and solve an equation of ratios, as follows:

180 miles       420 mi
-------------- = ------------
 12 gal                x

Then 180x = 5040, or x = 20

The car would need 20 gallons of gas to travel 420 miles.
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