document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=751777>Question 751777</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I have a problem on a homework assignment. The problem says: A farmhouse shelters 10 animals. Some are pigs and some are ducks. Together, there are 36 legs. How many of each are there?<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 #457394 by </B><A HREF=/tutors/aboutme.mpl?userid=FrankM><B>FrankM(1040)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=FrankM><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=FrankM><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=457394\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 4P+2D=36   i.e. 4 times the number of pigs is the number of pig-feet, 2D = duck-feet\r<BR>\n" );
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document.write( "P+D=10  ten animals total. \r<BR>\n" );
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document.write( "Multiply second equation by 4:\r<BR>\n" );
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document.write( "4P+4D=40<BR>\n" );
document.write( "4P+2D=36   (and subtract first equation.\r<BR>\n" );
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document.write( "2D=4\r<BR>\n" );
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document.write( "2 ducks, 8 pigs. 10 animals. \r<BR>\n" );
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document.write( "4 duck feet + 32 pig-feet, total 36 feet. </SPAN>\n" );
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