document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=233629>Question 233629</A>: <I><SPAN STYLE=\"word-break: break-all;\"> IN A PEN OF GOATS AND CHICKENS, THERE ARE 40 HEADS AND 130 FEET.  HOW MANY GOATS AND CHICKENS ARE IN THE PEN?? \r<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 #172431 by </B><A HREF=/tutors/aboutme.mpl?userid=nerdybill><B>nerdybill(7384)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=nerdybill><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=nerdybill><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=172431\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> IN A PEN OF GOATS AND CHICKENS, THERE ARE 40 HEADS AND 130 FEET. HOW MANY GOATS AND CHICKENS ARE IN THE PEN?? <BR>\n" );
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document.write( "Let p = number of pigs<BR>\n" );
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document.write( "40-p = number of goats<BR>\n" );
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document.write( "4p + 2(40-p) = 130<BR>\n" );
document.write( "2p + 40-p = 65<BR>\n" );
document.write( "p + 40 = 65<BR>\n" );
document.write( "p = 25 (number of pigs)<BR>\n" );
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document.write( "Number of goats:<BR>\n" );
document.write( "40-p = 40-25 = 15 (number of goats)\r<BR>\n" );
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