document.write( "Question 617177: sum of speed of two trains is 723.5 mph. the first train is 6.5 mph faster than the second train. find the speeds of each train. \n" ); document.write( "
Algebra.Com's Answer #388239 by ankor@dixie-net.com(22740)\"\" \"About 
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sum of speed of two trains is 723.5 mph. the first train is 6.5 mph faster than the second train.
\n" ); document.write( "find the speeds of each train.
\n" ); document.write( ":
\n" ); document.write( "Let s = speed of train B
\n" ); document.write( "then
\n" ); document.write( "(s+6.5) = speed of train A
\n" ); document.write( ":
\n" ); document.write( "s + (s+6.5) = 723.5
\n" ); document.write( "2s = 723.5 - 6.5
\n" ); document.write( "2s = 717
\n" ); document.write( "s = 717/2
\n" ); document.write( "s = 358.5 mph is train B
\n" ); document.write( "and
\n" ); document.write( "358.5 + 6.5 = 365 mph is train A \n" ); document.write( "
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