SOLUTION: Noah and Ben are running in the Walker Street Fun Run. Noah runs at 7 mph, Ben runs at 5 mph. If they start at the same time, how long (in minutes) will it be before they are 1/6 m

Algebra ->  Customizable Word Problem Solvers  -> Numbers -> SOLUTION: Noah and Ben are running in the Walker Street Fun Run. Noah runs at 7 mph, Ben runs at 5 mph. If they start at the same time, how long (in minutes) will it be before they are 1/6 m      Log On

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Question 411103: Noah and Ben are running in the Walker Street Fun Run. Noah runs at 7 mph, Ben runs at 5 mph. If they start at the same time, how long (in minutes) will it be before they are 1/6 mile apart?
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
Noah runs at 7 mph, Ben runs at 5 mph. If they start at the same time,
how long (in minutes) will it be before they are 1/6 mile apart?
:
Convert the speed to ft/min
%287%2A5280%29%2F60 = 616 ft/min
%285%2A5280%29%2F60 = 440 ft/min
convert 1/6 mi to ft
1%2F6*5280 = 880 ft
:
Let t = time in minutes for this to be true
:
N's dist - B's dist = 880 ft
616t - 440t = 880
176t = 880
t = 880%2F176
t = 5 minutes