document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=536196>Question 536196</A>: <I><SPAN STYLE=\"word-break: break-all;\"> an express train and local train leave vancouver at 3pm and head for hope 180 kms away. the local train travels two thirds as fast as the express train and arrives 1 hour after the express train. what time does thelocal train arrive in hope?\r<BR>\n" );
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document.write( "i have so far<BR>\n" );
document.write( "LOCAL: D = R x T<BR>\n" );
document.write( "       180=2/3R x T+1\r<BR>\n" );
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document.write( "EXPRESS: D = R x T<BR>\n" );
document.write( "        180= R x T\r<BR>\n" );
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document.write( "LOCAL: T=180/ 2/3r -1\r<BR>\n" );
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document.write( "EXPRESS; T=180/R\r<BR>\n" );
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document.write( "I DONT KNOW WHAT THE LCM IS FOR 2/3R AND R ...IS IT 1 2/3 R ? OR r(2/3r)>?<\r<BR>\n" );
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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 #352197 by </B><A HREF=/tutors/aboutme.mpl?userid=josmiceli><B>josmiceli(19441)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josmiceli><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=josmiceli><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=352197\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t ALIGN=MIDDLE  ALT=\"t\"   DISABLED_style= \"max-width:90%; height:auto;\" > = hours it takes local train to get to Hope<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+t+-+1+ ALIGN=MIDDLE  ALT=\"+t+-+1+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = hours it takes express train to get to Hope<BR>\n" );
document.write( "Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=s ALIGN=MIDDLE  ALT=\"s\"   DISABLED_style= \"max-width:90%; height:auto;\" > = the speed of the fast train in km/hr<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+%282%2F3%29%2Af+ ALIGN=MIDDLE  ALT=\"+%282%2F3%29%2Af+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = speed of the local train in km/hr<BR>\n" );
document.write( "-----------<BR>\n" );
document.write( "For local train:<BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+180+=+%282%2F3%29%2As%2At+ ALIGN=MIDDLE  ALT=\"+180+=+%282%2F3%29%2As%2At+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "For express train:<BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+180+=+s%2A%28+t+-+1+%29+ ALIGN=MIDDLE  ALT=\"+180+=+s%2A%28+t+-+1+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "-----------------<BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+540+=+2%2As%2At+ ALIGN=MIDDLE  ALT=\"+540+=+2%2As%2At+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+s%2At+=+270+ ALIGN=MIDDLE  ALT=\"+s%2At+=+270+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "and<BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+180+=+s%2At+-+s+ ALIGN=MIDDLE  ALT=\"+180+=+s%2At+-+s+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Substitute (1) into (2)<BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+180+=+270+-+s+ ALIGN=MIDDLE  ALT=\"+180+=+270+-+s+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+s+=+90+ ALIGN=MIDDLE  ALT=\"+s+=+90+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "and<BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+s%2At+=+270+ ALIGN=MIDDLE  ALT=\"+s%2At+=+270+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "{1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+t+=+270%2F90+ ALIGN=MIDDLE  ALT=\"+t+=+270%2F90+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+t+=+3+ ALIGN=MIDDLE  ALT=\"+t+=+3+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "The local train arrives at 3 PM + 3 hrs = 6 PM<BR>\n" );
document.write( "check:<BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+180+=+%282%2F3%29%2A90%2A3+ ALIGN=MIDDLE  ALT=\"+180+=+%282%2F3%29%2A90%2A3+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+180+=+180+ ALIGN=MIDDLE  ALT=\"+180+=+180+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "OK </SPAN>\n" );
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