document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=462379>Question 462379</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Two trains are 330 miles apart, and their speeds differ by 20 mph. They travel toward each other and meet in 3 hrs. Find the speed of each train. \r<BR>\n" );
document.write( "\n" );
document.write( "I'm having trouble putting this problem into an equation. <BR>\n" );
document.write( "It's different from the other travel/distance questions i've had. <BR>\n" );
document.write( "I understand if i'm given the mph for each train but i don't know how to find it in this problem. \r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #316992 by </B><A HREF=/tutors/aboutme.mpl?userid=MathLover1><B>MathLover1(20855)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=MathLover1><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=MathLover1><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=316992\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> \r<BR>\n" );
document.write( "\n" );
document.write( "given data: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1st ALIGN=MIDDLE  ALT=\"1st\"   DISABLED_style= \"max-width:90%; height:auto;\" ><IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+train+ ALIGN=MIDDLE  ALT=\"+train+\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "distance: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x-miles+ ALIGN=MIDDLE  ALT=\"x-miles+\"   DISABLED_style= \"max-width:90%; height:auto;\" > miles ; time <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t=+3+h ALIGN=MIDDLE  ALT=\"t=+3+h\"   DISABLED_style= \"max-width:90%; height:auto;\" > ; rate <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r1=+x%2F3h ALIGN=MIDDLE  ALT=\"r1=+x%2F3h\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2nd ALIGN=MIDDLE  ALT=\"2nd\"   DISABLED_style= \"max-width:90%; height:auto;\" ><IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+train ALIGN=MIDDLE  ALT=\"+train\"   DISABLED_style= \"max-width:90%; height:auto;\" > :\r<BR>\n" );
document.write( "\n" );
document.write( "distance: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28330-x%29+miles ALIGN=MIDDLE  ALT=\"%28330-x%29+miles\"   DISABLED_style= \"max-width:90%; height:auto;\" > ; time <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t=+3+h ALIGN=MIDDLE  ALT=\"t=+3+h\"   DISABLED_style= \"max-width:90%; height:auto;\" > ; rate <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r2=+%28330-x%29%2F3h ALIGN=MIDDLE  ALT=\"r2=+%28330-x%29%2F3h\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "rate1 - rate2 \r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r1-r2=+20 ALIGN=MIDDLE  ALT=\"r1-r2=+20\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%2F3h-%28330-x%29%2F3h+=+20 ALIGN=MIDDLE  ALT=\"x%2F3h-%28330-x%29%2F3h+=+20\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x%2F3%29+-+%28110-%28x%2F3%29%29+=+20 ALIGN=MIDDLE  ALT=\"%28x%2F3%29+-+%28110-%28x%2F3%29%29+=+20\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%282%2F3%29x+=+20+%2B+110 ALIGN=MIDDLE  ALT=\"%282%2F3%29x+=+20+%2B+110\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%282%2F3%29x+=+130 ALIGN=MIDDLE  ALT=\"%282%2F3%29x+=+130\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+%283%2F2%29130 ALIGN=MIDDLE  ALT=\"x+=+%283%2F2%29130\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+195+mil ALIGN=MIDDLE  ALT=\"x+=+195+mil\"   DISABLED_style= \"max-width:90%; height:auto;\" >...... distance traveled by 1st train\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=speed ALIGN=MIDDLE  ALT=\"speed\"   DISABLED_style= \"max-width:90%; height:auto;\" > of first train is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=v1+=+195%2F3+=+65+mph ALIGN=MIDDLE  ALT=\"v1+=+195%2F3+=+65+mph\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=speed ALIGN=MIDDLE  ALT=\"speed\"   DISABLED_style= \"max-width:90%; height:auto;\" >of second train is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=v2+=+%28330-195%29%2F3+=+45+mph ALIGN=MIDDLE  ALT=\"v2+=+%28330-195%29%2F3+=+45+mph\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );