document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=290671>Question 290671</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The cost of a trip is RM600. The cost for each member would be RM5 less if 10 non members were allowed to join. If the cost was shared equally among the students, find the number of members going for the trip </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #210331 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=210331\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> let the number of members be x\r<BR>\n" );
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document.write( "cost per person = 600/x\r<BR>\n" );
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document.write( "if 10 more join cost per person will be 600/ x+10\r<BR>\n" );
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document.write( "600/x+10 +5 = 600/x\r<BR>\n" );
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document.write( "600/x+10 - 600/x = -5\r<BR>\n" );
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document.write( "600x-600x-6000= -5x(x+10)\r<BR>\n" );
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document.write( "-6000=-5x^2-50x\r<BR>\n" );
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document.write( "5x^2+50x-6000=\r<BR>\n" );
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document.write( "x^2+10x-1200=0\r<BR>\n" );
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document.write( "x^2+40x-30x-1200=0\r<BR>\n" );
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document.write( "x(x+40)-30(x+40)=0\r<BR>\n" );
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document.write( "(x-30)(x+40)=0\r<BR>\n" );
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document.write( "x=30  the number of members\r<BR>\n" );
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document.write( " </SPAN>\n" );
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