document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=326846>Question 326846</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 18. Keiko bicycles 4 km/h faster than Dennis.  In the same time it takes Dennis to bicycle 27 km, Deiko can bicycle 39 Km. How fast does each bicyclist travel?  Dennis travels ?km/h<BR>\n" );
document.write( "Keiko travels ? Km/h  <BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #234052 by </B><A HREF=/tutors/aboutme.mpl?userid=galactus><B>galactus(183)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=galactus><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=galactus><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=234052\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Remember that d=rt.\r<BR>\n" );
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document.write( "In this case, we want time so we use t=d/r\r<BR>\n" );
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document.write( "We are told that there times are equal. One is just traveling faster than the other.\r<BR>\n" );
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document.write( "Dennis's time is 27/r\r<BR>\n" );
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document.write( "Deiko's time is 39/(r+4)\r<BR>\n" );
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document.write( "Since they are equal, we have <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=27%2Fr=39%2F%28r%2B4%29 ALIGN=MIDDLE  ALT=\"27%2Fr=39%2F%28r%2B4%29\"   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=27%28r%2B4%29=39r ALIGN=MIDDLE  ALT=\"27%28r%2B4%29=39r\"   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=27r%2B108=39r ALIGN=MIDDLE  ALT=\"27r%2B108=39r\"   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=108=12r ALIGN=MIDDLE  ALT=\"108=12r\"   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=9 ALIGN=MIDDLE  ALT=\"r=9\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "So, Dennis is going 9 kph and Deiko is traveling 13 kph.\r<BR>\n" );
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document.write( "These types of problems are variations on a theme. Use d=rt and manipulate it accordingly. Since they said their times were equal, we use t=d/r. The distance is given, so all we have to do is solve for the rates by equating the time, t=d/r. \r<BR>\n" );
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document.write( "See?. <BR>\n" );
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