document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=817955>Question 817955</A>: <I><SPAN STYLE=\"word-break: break-all;\"> the freight train headed south at 9 a.m. and the express train headed north from the same station at noon.  at 3 p.m. the trains were 420 miles apart.  What was the speed of each if the speed of the express train was 20 miles per hour greater than the speed of the freight train? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #492298 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=492298\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 6f+3e=420<BR>\n" );
document.write( "e=20+f<BR>\n" );
document.write( "6f+3*(20+f)=420\r<BR>\n" );
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document.write( "6f+60+3f=420<BR>\n" );
document.write( "9f=360<BR>\n" );
document.write( "f=40<BR>\n" );
document.write( "e=60\r<BR>\n" );
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document.write( " </SPAN>\n" );
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