document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1073328>Question 1073328</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Two trains, one going from Boston to New York and the other going from New York to Boston, started their trips at exactly same time. Speed of the first train was 10 miles per hour less than twice the speed of the second train. How far from Boston station have they met in two hours, if the total distance between the cities along the rail road is 220 miles? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #688156 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=688156\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The wording is awkward.<BR>\n" );
document.write( "\" How far from Boston station have they met in two hours \"<BR>\n" );
document.write( "It's ungrammatical, but it sounds like they meet in 2 hrs<BR>\n" );
document.write( "If this is true, then:<BR>\n" );
document.write( "-------------------------<BR>\n" );
document.write( "Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+s+%7D%7D+=+the+speed+of+NY+-+BOS+train+in+mi%2Fhr%0D%0A%7B%7B%7B+2s+-+10+ ALIGN=MIDDLE  ALT=\"+s+%7D%7D+=+the+speed+of+NY+-+BOS+train+in+mi%2Fhr%0D%0A%7B%7B%7B+2s+-+10+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = the speed of the BOS - NY train in mi/hr<BR>\n" );
document.write( "Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+d+ ALIGN=MIDDLE  ALT=\"+d+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = distance in miles from Boston station when they meet<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+220+-+d+ ALIGN=MIDDLE  ALT=\"+220+-+d+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = distance from NY station when they meet<BR>\n" );
document.write( "-------------------------------------------------------------<BR>\n" );
document.write( "BOS - NY train:<BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+d+=+%28+2s+-+10+%29%2A2+ ALIGN=MIDDLE  ALT=\"+d+=+%28+2s+-+10+%29%2A2+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "NY - BOS train:<BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+220+-+d+=+s%2A2+ ALIGN=MIDDLE  ALT=\"+220+-+d+=+s%2A2+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "----------------------------<BR>\n" );
document.write( "By substitution:<BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+220+-+%28+2s+-+10+%29%2A2+=+2s+ ALIGN=MIDDLE  ALT=\"+220+-+%28+2s+-+10+%29%2A2+=+2s+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+220+-+4s+%2B+20+=+2s+ ALIGN=MIDDLE  ALT=\"+220+-+4s+%2B+20+=+2s+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+6s+=+240+ ALIGN=MIDDLE  ALT=\"+6s+=+240+\"   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+=+40+ ALIGN=MIDDLE  ALT=\"+s+=+40+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "and<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+2s+-+10+=+2%2A40+-+10+ ALIGN=MIDDLE  ALT=\"+2s+-+10+=+2%2A40+-+10+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+2s+-+10+=+70+ ALIGN=MIDDLE  ALT=\"+2s+-+10+=+70+\"   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=+d+=+%28+2s+-+10+%29%2A2+ ALIGN=MIDDLE  ALT=\"+d+=+%28+2s+-+10+%29%2A2+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+d+=+70%2A2+ ALIGN=MIDDLE  ALT=\"+d+=+70%2A2+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+d+=+140+ ALIGN=MIDDLE  ALT=\"+d+=+140+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "The trains meet 140 mi from the Boston Station<BR>\n" );
document.write( "---------------------------------------------<BR>\n" );
document.write( "check:<BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+220+-+d+=+s%2A2+ ALIGN=MIDDLE  ALT=\"+220+-+d+=+s%2A2+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+220+-+d+=+80+ ALIGN=MIDDLE  ALT=\"+220+-+d+=+80+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "and<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+140+%2B+80+=+220+ ALIGN=MIDDLE  ALT=\"+140+%2B+80+=+220+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "OK\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );