document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=260372>Question 260372</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Two trains leave the same station at the same time and travel in opposite directions. One train travels at 80 kilometers per hour and the other at 100 kilometers per hour. In how many hours will they be 900 kilometers apart?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #191796 by </B><A HREF=/tutors/aboutme.mpl?userid=richwmiller><B>richwmiller(17219)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richwmiller><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=richwmiller><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=191796\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> rt=d<BR>\n" );
document.write( "rt+rt=900<BR>\n" );
document.write( "80t+100t=900<BR>\n" );
document.write( "180t=900<BR>\n" );
document.write( "18t=90<BR>\n" );
document.write( "2t=10<BR>\n" );
document.write( "t=5<BR>\n" );
document.write( "5 hours<BR>\n" );
document.write( "80*5+100*5=900<BR>\n" );
document.write( "ok<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );