document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1202418>Question 1202418</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 mph 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 #837262 by </B><A HREF=/tutors/aboutme.mpl?userid=greenestamps><B>greenestamps(13200)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=greenestamps><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=greenestamps><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=837262\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <br><BR>\n" );
document.write( "Another wrong answer from tutor @mananth, who provides responses without checking to see if her answers are correct....<br><BR>\n" );
document.write( "(The freight train travels for 6 hours, but the express train only travel for 3 hours.)<br><BR>\n" );
document.write( "6(x)+3(x+20) = 420<BR>\n" );
document.write( "6x+3x+60 = 420<BR>\n" );
document.write( "9x = 360<BR>\n" );
document.write( "x = 40<br><BR>\n" );
document.write( "ANSWERS:<BR>\n" );
document.write( "freight train: x = 40 mph<BR>\n" );
document.write( "express train: x+20 = 60 mph<br><BR>\n" );
document.write( "CHECK: 6(40)+3(60) = 240+180 = 420<br><BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );