document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=861393>Question 861393</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Two trains leave the station at the same time, but headed in opposite directions. The first train travels 10mph faster than the second train. After six hours they are 720 miles apart. What are the speeds of the trains. </SPAN>\n" );
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document.write( "LET X BE THE SPEED OF THE SLOWER TRAIN<BR>\n" );
document.write( "LET X+10 BE THE SPEED OF THE FASTER TRAIN<BR>\n" );
document.write( "720=(X+X+10)6<BR>\n" );
document.write( "720=(2X+10)6<BR>\n" );
document.write( "720=12X+60<BR>\n" );
document.write( "12X=720-60<BR>\n" );
document.write( "12X=660<BR>\n" );
document.write( "X=660/12<BR>\n" );
document.write( "X=55 MPH FOR THE SLOWER TRAIN.<BR>\n" );
document.write( "55+10=65 MPH FOR THE FASTER TRAIN.<BR>\n" );
document.write( "PROOF:<BR>\n" );
document.write( "720=(55+65)6<BR>\n" );
document.write( "720=120*6<BR>\n" );
document.write( "720=720<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );