document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=152521>Question 152521</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hi,\r<BR>\n" );
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document.write( "How would I solve the following: Applications of Linear Equations \r<BR>\n" );
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document.write( "An express and local train leave Gray’s Lake at 3 P.M. and head for Chicago 50 miles away. The express travels twice as fast as the local, and arrives 1 hour ahead of it. Find the speed of each train. \r<BR>\n" );
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document.write( "Thank you so much for your help.\r<BR>\n" );
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document.write( "Sally </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #112100 by </B><A HREF=/tutors/aboutme.mpl?userid=Fombitz><B>Fombitz(32388)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Fombitz><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=Fombitz><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=112100\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Rate times time equals distance.<BR>\n" );
document.write( "The express train travels at a rate of <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=R%5Be%5D ALIGN=MIDDLE  ALT=\"R%5Be%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" > and takes <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%5Be%5D ALIGN=MIDDLE  ALT=\"t%5Be%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" > to travel the 50 miles.<BR>\n" );
document.write( "1.<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=R%5Be%5D%2At%5Be%5D=50 ALIGN=MIDDLE  ALT=\"R%5Be%5D%2At%5Be%5D=50\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "The local train travels at a rate of <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=R%5Bl%5D ALIGN=MIDDLE  ALT=\"R%5Bl%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" > and takes <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%5Bl%5D ALIGN=MIDDLE  ALT=\"t%5Bl%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" > to travel the 50 miles.<BR>\n" );
document.write( "2.<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=R%5Bl%5D%2At%5Bl%5D=50 ALIGN=MIDDLE  ALT=\"R%5Bl%5D%2At%5Bl%5D=50\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "You also know that the rate of the express train is twice the rate of the local train. <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=R%5Be%5D=2%2AR%5Bl%5D ALIGN=MIDDLE  ALT=\"R%5Be%5D=2%2AR%5Bl%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "And finally you know that the local train arrived 1 hour after the express train.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%5Bl%5D=t%5Be%5D%2B1 ALIGN=MIDDLE  ALT=\"t%5Bl%5D=t%5Be%5D%2B1\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "From 2,<BR>\n" );
document.write( "2.<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=R%5Bl%5D%2At%5Bl%5D=50 ALIGN=MIDDLE  ALT=\"R%5Bl%5D%2At%5Bl%5D=50\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Substitute for <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=R%5Bl%5D ALIGN=MIDDLE  ALT=\"R%5Bl%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" > and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%5Bl%5D ALIGN=MIDDLE  ALT=\"t%5Bl%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "2.<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=R%5Bl%5D%2At%5Bl%5D=50 ALIGN=MIDDLE  ALT=\"R%5Bl%5D%2At%5Bl%5D=50\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%281%2F2%29%2AR%5Be%5D%2A%28t%5Be%5D%2B1%29=50 ALIGN=MIDDLE  ALT=\"%281%2F2%29%2AR%5Be%5D%2A%28t%5Be%5D%2B1%29=50\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=R%5Be%5D%2A%28t%5Be%5D%2B1%29=100 ALIGN=MIDDLE  ALT=\"R%5Be%5D%2A%28t%5Be%5D%2B1%29=100\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=R%5Be%5D%2At%5Be%5D%2BR%5Be%5D=100 ALIGN=MIDDLE  ALT=\"R%5Be%5D%2At%5Be%5D%2BR%5Be%5D=100\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "From 1, you know that <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=R%5Be%5D%2At%5Be%5D=50 ALIGN=MIDDLE  ALT=\"R%5Be%5D%2At%5Be%5D=50\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=R%5Be%5D%2At%5Be%5D%2BR%5Be%5D=100 ALIGN=MIDDLE  ALT=\"R%5Be%5D%2At%5Be%5D%2BR%5Be%5D=100\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=50%2BR%5Be%5D=100 ALIGN=MIDDLE  ALT=\"50%2BR%5Be%5D=100\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=R%5Be%5D=50 ALIGN=MIDDLE  ALT=\"R%5Be%5D=50\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "The express train travels at 50 miles per hour.<BR>\n" );
document.write( "From 1,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=R%5Be%5D%2At%5Be%5D=50 ALIGN=MIDDLE  ALT=\"R%5Be%5D%2At%5Be%5D=50\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=50%2At%5Be%5D=50 ALIGN=MIDDLE  ALT=\"50%2At%5Be%5D=50\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%5Be%5D=1 ALIGN=MIDDLE  ALT=\"t%5Be%5D=1\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "The express train takes 1 hour to reach Chicago. <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=R%5Be%5D=2%2AR%5Bl%5D ALIGN=MIDDLE  ALT=\"R%5Be%5D=2%2AR%5Bl%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=50=2%2AR%5Bl%5D ALIGN=MIDDLE  ALT=\"50=2%2AR%5Bl%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=R%5Bl%5D=25 ALIGN=MIDDLE  ALT=\"R%5Bl%5D=25\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "The local train travels 25 miles per hour.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%5Bl%5D=t%5Be%5D%2B1 ALIGN=MIDDLE  ALT=\"t%5Bl%5D=t%5Be%5D%2B1\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%5Bl%5D=1%2B1 ALIGN=MIDDLE  ALT=\"t%5Bl%5D=1%2B1\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%5Bl%5D=2 ALIGN=MIDDLE  ALT=\"t%5Bl%5D=2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "The local train takes 2 hours to reach Chicago.  </SPAN>\n" );
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