Question 350497
Two brothers , Bob and Charlie , live 450 miles apart. Starting at the same time they plan to drive until they meet. Bob averages 10 mph faster than Charlie who averages 50 mph. How long will it take them to meet? 
Let t = time (in hours) 
60(t) + 50(t) = 450 
t = 4.09 hours 
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That is correct.
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Cheers,
Stan H.