document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=160728>Question 160728</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The members of a flying club plan to share equally the cost of a $200,000 airplane. The members want to 5 more people to join the club so that the cost per person will decrease by $2,000. How many members are currently in the club? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #118527 by </B><A HREF=/tutors/aboutme.mpl?userid=Fombitz><B>Fombitz(32388)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Fombitz><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=Fombitz><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=118527\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let N be the number of members in the club now.<BR>\n" );
document.write( "The per-person price now is,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=PPN=200000%2FN ALIGN=MIDDLE  ALT=\"PPN=200000%2FN\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "The per-person price when 5 more join is,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=PPF=200000%2F%28N%2B5%29 ALIGN=MIDDLE  ALT=\"PPF=200000%2F%28N%2B5%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "You also know that,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=PPF=PPN-2000 ALIGN=MIDDLE  ALT=\"PPF=PPN-2000\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Substitute for your expression with N,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=PPF=PPN-2000 ALIGN=MIDDLE  ALT=\"PPF=PPN-2000\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=200000%2F%28N%2B5%29=200000%2FN-2000 ALIGN=MIDDLE  ALT=\"200000%2F%28N%2B5%29=200000%2FN-2000\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=200000N=200000%28N%2B5%29-2000N%28N%2B5%29 ALIGN=MIDDLE  ALT=\"200000N=200000%28N%2B5%29-2000N%28N%2B5%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=200N=200%28N%2B5%29-2N%28N%2B5%29 ALIGN=MIDDLE  ALT=\"200N=200%28N%2B5%29-2N%28N%2B5%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=200N=200N%2B1000-2N%5E2-10N%29 ALIGN=MIDDLE  ALT=\"200N=200N%2B1000-2N%5E2-10N%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2N%5E2%2B10N-1000=0%29 ALIGN=MIDDLE  ALT=\"2N%5E2%2B10N-1000=0%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=N%5E2%2B5N-500=0 ALIGN=MIDDLE  ALT=\"N%5E2%2B5N-500=0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28N%2B25%29%28N-20%29=0%29 ALIGN=MIDDLE  ALT=\"%28N%2B25%29%28N-20%29=0%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( ".<BR>\n" );
document.write( ".<BR>\n" );
document.write( ".<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=N%2B25=0 ALIGN=MIDDLE  ALT=\"N%2B25=0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=N=-25 ALIGN=MIDDLE  ALT=\"N=-25\"   DISABLED_style= \"max-width:90%; height:auto;\" > <BR>\n" );
document.write( "A negative answer doesn't make sense in our case.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=N-20=0 ALIGN=MIDDLE  ALT=\"N-20=0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=N=20 ALIGN=MIDDLE  ALT=\"N=20\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "There are 20 members currently. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );