SOLUTION: A train leaves Houston at midnight traveling north at 44mph. An hour later, a passenger train, going 55mph, travels north from Houston on a parallel track. How long will it take th

Algebra ->  Customizable Word Problem Solvers  -> Travel -> SOLUTION: A train leaves Houston at midnight traveling north at 44mph. An hour later, a passenger train, going 55mph, travels north from Houston on a parallel track. How long will it take th      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


   



Question 982839: A train leaves Houston at midnight traveling north at 44mph. An hour later, a passenger train, going 55mph, travels north from Houston on a parallel track. How long will it take the passenger train to overtake the freight train?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Let t be the time the second train leaves the station, the first train will already have traveled 44 miles.
D%5B1%5D%28t%29=44t%2B44
D%5B2%5D%28t%29=55t
Find t when D%5B1%5D=D%5B2%5D
44t%2B44=55t
11t=44
t=4
In 4 hours.