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henry's car can travel 252 miles with 6 gallons of gasoline. He is planning a trip that will require him to drive 400 miles. He thinks he can complete the trip with 10 gallons of gasoline. Is he correct?

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Yes, he is correct. If his car can travel 252 miles with 6 gallons, then it can travel 42 miles on one gallon. So with 42 miles per gallon, he can drive 420 miles per 10 gallons.
User Razboy
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