document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=858763>Question 858763</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If a passenger train travels three times as fast as a freight train, and the freight train takes 4 hours longer to travel 210 miles. What is the speed of each train? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #517404 by </B><A HREF=/tutors/aboutme.mpl?userid=lwsshak3><B>lwsshak3(11628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lwsshak3><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=517404\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> If a passenger train travels three times as fast as a freight train, and the freight train takes 4 hours longer to travel 210 miles. What is the speed of each train?<BR>\n" );
document.write( "***<BR>\n" );
document.write( "let x=speed of freight train<BR>\n" );
document.write( "3x=speed of passenger train<BR>\n" );
document.write( "travel time =distance/speed<BR>\n" );
document.write( "...<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=210%2Fx-210%2F3x=4 ALIGN=MIDDLE  ALT=\"210%2Fx-210%2F3x=4\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "LCD:3x<BR>\n" );
document.write( "630-210=12x<BR>\n" );
document.write( "12x=420<BR>\n" );
document.write( "x=35<BR>\n" );
document.write( "3x=105<BR>\n" );
document.write( "speed of freight train=35 mph<BR>\n" );
document.write( "speed of passenger train=105 mph </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );