document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1165441>Question 1165441</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Jeff and Kirk can build a 75ft wall together in 10<BR>\n" );
document.write( "Hours. Because Jeff has more experience, he could build wall by myself 3 hours quicker than Kirk. How long would it take Kirk to build the wall by himself ?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #789931 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39618)</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=789931\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> k, the time needed for Kirk working alone\r<BR>\n" );
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document.write( "PERSON            RATE\r\n" );
document.write( "Jeff              1/(k-3)\r\n" );
document.write( "Kirk              1/k\r\n" );
document.write( "Combined          1/10\r\n" );
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document.write( "The size of the wall 75 feet only represents the ONE JOB.  How MUCH of the job is not emphasized in the description.\r<BR>\n" );
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document.write( "Solve for k, in <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F%28k-3%29%2B1%2Fk=1%2F10 ALIGN=MIDDLE  ALT=\"1%2F%28k-3%29%2B1%2Fk=1%2F10\"   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=k%5E2-23k%2B30=0 ALIGN=MIDDLE  ALT=\"k%5E2-23k%2B30=0\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "General solution for quadratic equation formula gives 21.6 hours for Kirk to do the one job by himself. </SPAN>\n" );
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