Friday
April 18, 2014

Homework Help: math

Posted by israel on Saturday, November 12, 2011 at 10:58pm.

how do i solve this: a Train leaves Poughkeepsie to grand central station in NYC at an average speed of 40 mph. a half hour later an express train leaves poughkeepsie station to NYC at a speed of 50 mph. both trains arrive at NYC the same time. based on this info calculate the distance between poughkeepsie and NYC

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