Question 473294: Lauren and david, two cyclists leaev from philadelphia traveling in opposite directions. David travels 5mph faster than lauren, after 3 hours, they are 25miles apart, what are the rates of each?
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! Lauren and david, two cyclists leave from philadelphia traveling in opposite directions. David travels 5mph faster than lauren, after 3 hours, they are 25 miles apart, what are the rates of each?
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Lauren rate = x mph
David rate = x+5 mph
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Combined rate = 2x+5 mph
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Solve rate * time = distance
(2x+5)3 = 25
6x+15 = 25
6x = 10
x = 5/3 mph
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Note: That's awfully slow for a bicycle. Please
check the statement of your problem.
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Cheers,
Stan H.
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