document.write( "Question 524719: two trains leave simultancouly traveling on the same track in opposite directions at speeds of 50 and 64 mph. How long will it take before they are 285miles apart \n" ); document.write( "

Algebra.Com's Answer #347874 by josmiceli(19441) $\"\"$ $\"About$

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Think of this as one train standing still and the
\n" ); document.write( "other moving at the sum of their speeds
\n" ); document.write( "Let $\"t\"$ = time for them to get $\"+285+\"$ mi apart
\n" ); document.write( " $\"+285+=+%28+50+%2B+64+%29%2At+\"$
\n" ); document.write( " $\"+t+=+285%2F114+\"$
\n" ); document.write( " $\"+t+=+2.5+\"$
\n" ); document.write( "It will take them 2.5 hrs \n" ); document.write( "

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