document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1138064>Question 1138064</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Two cars traveled from Elmhurst to Oakville, a distance of 100 miles. One car traveled 10 mph faster than the other and arrived 5/6 of an hour sooner. Find the speed of the faster car.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #755949 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=755949\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> r, speed of slow car<BR>\n" );
document.write( "r+10, speed of  fast car\r<BR>\n" );
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document.write( "Time difference,  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%285%2F6%29%2Ahour ALIGN=MIDDLE  ALT=\"%285%2F6%29%2Ahour\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=100%2Fr-100%2F%28r%2B10%29=5%2F6 ALIGN=MIDDLE  ALT=\"100%2Fr-100%2F%28r%2B10%29=5%2F6\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( ".\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1200=r%5E2%2B10r ALIGN=MIDDLE  ALT=\"1200=r%5E2%2B10r\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r%28r%2B10%29=1200 ALIGN=MIDDLE  ALT=\"r%28r%2B10%29=1200\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Note that 30 and 40 are factors of 1200 and they differ by 10.\r<BR>\n" );
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document.write( "Slow Car,  30 mph<BR>\n" );
document.write( "Fast Car,  40 mph </SPAN>\n" );
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