document.write( "Question 829277: Two trains leave a station at the same time. one train is traveling west at 60 kilometers per hour and the other train is traveling east at 55 kilometer per hour. in how many hours will they be 575 kilometers apart? \n" ); document.write( "
Algebra.Com's Answer #499729 by TimothyLamb(4379)\"\" \"About 
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\n" ); document.write( "relative speed of two trains:
\n" ); document.write( "60 + 55 = 115 kph
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\n" ); document.write( "s = d/t
\n" ); document.write( "t = d/s
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\n" ); document.write( "t = 575/115
\n" ); document.write( "t = 5 hours
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