document.write( "Question 353862: Two trains start at the same time and travel in opposite directions. One train travels at 65 mi/h and the other train travels at 75mi/h. In how many hours will they be 490 mi apart? \n" ); document.write( "
Algebra.Com's Answer #252952 by ewatrrr(24785)\"\" \"About 
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Hi,
\n" ); document.write( "Let t be the time each train travels going in opposite directiosn.
\n" ); document.write( "d = r*t
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\n" ); document.write( "question states
\n" ); document.write( "65t + 75t = 490mi
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\n" ); document.write( "140t = 490mi
\n" ); document.write( "t = 3.5 hr
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