document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=953335>Question 953335</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The difference in the average speed of two trains is 16 miles per hour. The slower <BR>\n" );
document.write( "train takes 2 hours longer to travel 170 miles than the faster train takes to travel <BR>\n" );
document.write( "150 miles. Find the speed of the slower train </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #582165 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39800)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=582165\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> ____________________speed__________time___________distance<BR>\n" );
document.write( "SLOW________________r______________t+2____________170<BR>\n" );
document.write( "FAST________________r+16___________t______________150\r<BR>\n" );
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document.write( "Implied variables;<BR>\n" );
document.write( "RT=D uniform travel rates\r<BR>\n" );
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document.write( "Two equations in two unknown variables.  \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t=150%2F%28r%2B16%29 ALIGN=MIDDLE  ALT=\"t=150%2F%28r%2B16%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r%28%28150%2F%28r%2B16%29%29%2B2%29=170 ALIGN=MIDDLE  ALT=\"r%28%28150%2F%28r%2B16%29%29%2B2%29=170\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=150r%2F%28r%2B16%29%2B2r=170 ALIGN=MIDDLE  ALT=\"150r%2F%28r%2B16%29%2B2r=170\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=150r%2B2r%28r%2B16%29=170%28r%2B16%29 ALIGN=MIDDLE  ALT=\"150r%2B2r%28r%2B16%29=170%28r%2B16%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=150r%2B2r%5E2%2B32=170r%2B170%2A16 ALIGN=MIDDLE  ALT=\"150r%2B2r%5E2%2B32=170r%2B170%2A16\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2r%5E2%2B32=20r%2B170%2A16 ALIGN=MIDDLE  ALT=\"2r%5E2%2B32=20r%2B170%2A16\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r%5E2%2B16=10r%2B170%2A8 ALIGN=MIDDLE  ALT=\"r%5E2%2B16=10r%2B170%2A8\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r%5E2-10r%2B16-170%2A8=0 ALIGN=MIDDLE  ALT=\"r%5E2-10r%2B16-170%2A8=0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight_green%28r%5E2-10r-1344=0%29 ALIGN=MIDDLE  ALT=\"highlight_green%28r%5E2-10r-1344=0%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "PREPARE FOR GENERAL SOLUTION FOR QUADRATIC EQUATION<BR>\n" );
document.write( "Discriminant:  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=100%2B4%2A1344=5476=%2874%29%5E2 ALIGN=MIDDLE  ALT=\"100%2B4%2A1344=5476=%2874%29%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( ";<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r=%2810%2B-+74%29%2F2 ALIGN=MIDDLE  ALT=\"r=%2810%2B-+74%29%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" >, obviously the PLUS form is needed.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r=%2810%2B74%29%2F2 ALIGN=MIDDLE  ALT=\"r=%2810%2B74%29%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28r=42%29 ALIGN=MIDDLE  ALT=\"highlight%28r=42%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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