SOLUTION: A train station is one third of a mile away, and Marc has three minutes to get there. How fast must he run to catch the train (in minutes per mile)?

Question 308323: A train station is one third of a mile away, and Marc has three minutes to get there. How fast must he run to catch the train (in minutes per mile)?
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
A train station is one third of a mile away, and Marc has three minutes to get there.
How fast must he run to catch the train (in minutes per mile)?
:
let s = the required speed (min/mile)
:
Dist/speed = time

--- = 3
s
:
Multiply both sides by s
:
= 3s
divide both sides by 3
s =
s = mi/min
:
:
Check this: 3 min * = =
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