SOLUTION: Two cars are traveling in the same direction. The first car leaves 30 minutes before the second car. If the first car travels 55mph and the second car travels 65mph, how long wil

Question 1013542: Two cars are traveling in the same direction. The first car leaves 30 minutes before the second car. If the first car travels 55mph and the second car travels 65mph, how long will it take the second car to pass?
Answer by fractalier(6550) (Show Source): You can put this solution on YOUR website!
In a half hour, the first car travels (1/2)(55) = 27.5 miles.
That's his head start.
Since the faster car catches up 10 miles per hour (65-55), it will make up the 27.5 miles in 2.75 hours.
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