SOLUTION: I need your help on a word problem. Here is the problem: Express train problem: Traveling 90 mph, it takes the Express Train six seconds for the entire train to enter a two-mile

Algebra ->  Customizable Word Problem Solvers  -> Travel -> SOLUTION: I need your help on a word problem. Here is the problem: Express train problem: Traveling 90 mph, it takes the Express Train six seconds for the entire train to enter a two-mile      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


   



Question 298319: I need your help on a word problem. Here is the problem:
Express train problem: Traveling 90 mph, it takes the Express Train six seconds for the entire train to enter a two-mile tunnel. How many seconds will it take the Express to completely travel through this tunnel?
Thanks!

Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
Traveling 90 mph, it takes the Express Train six seconds for the entire train to enter a two-mile tunnel.
How many seconds will it take the Express to completely travel through this tunnel?
:
find the length of the train: 690%2F3600* .15 mi long
:
Time = dist/speed
Length of the train added to the tunnel dist: 2.15 mi
:
t = 2.15%2F90*3600
t = 86 seconds