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Joe and Janna leave home at the same time, traveling in opposite directions. Joe drives 45 mph and Janna drives 40 mph. In how many hours will they be 510 miles apart?
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Joe and Janna leave home at the same time, traveling in opposite directions. Joe drives 45 mph and Janna drives 40 mph. In how many hours will they be 510 miles apart?

User Kaveh Naseri
by
8.3k points

2 Answers

3 votes
The answer is 6 hours
User Gdibble
by
8.1k points
3 votes
510 = 45x + 40x
510 = 85x
Divide by 85
6 = x

6 hours
User Shmnff
by
8.0k points
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