SOLUTION: The Browns are moving across the country. Mr. Brown leaves 5 hours before Mrs. Brown. If he averages 50 mph and she averages 90 mph, how long will it take Mrs. Brown to overtake

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Question 1046978: The Browns are moving across the country. Mr. Brown leaves 5 hours before Mrs. Brown. If he averages 50 mph and she averages 90 mph, how long will it take Mrs. Brown to overtake Mr. Brown?
Answer by jorel555(1290) About Me  (Show Source):
You can put this solution on YOUR website!
Mr. Brown leaves 5 hours early, at 50 mph, which gives him a 250 mile head start. So:
50n+250=90n
40n=250
n=6.25 hours after Mrs. Brown leaves before she overtakes Mr. Brown. ☺☺☺☺