document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1139313>Question 1139313</A>: <I><SPAN STYLE=\"word-break: break-all;\"> An animal breeder can buy four types of food for Vietnamese​ pot-bellied pigs.  Each case of Brand A contains 25 units of​ fiber, 30 units of​ protein, and 30 units of fat.  Each case of Brand B contains 100 units of​ fiber, 80 units of​ protein, and 70 units of fat.  Each case of Brand C contains 275 units of​ fiber, 210 units of​ protein, and 190 units of fat.  Each case of Brand D contains 100 units of​ fiber, 80 units of​ protein, and 60 units of fat.  How many cases of each  brand should the breeder mix together to obtain a food that provides 3950 units of​ fiber, 3060 units of​ protein, and 2740 units of​ fat?\r<BR>\n" );
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document.write( "Let x represent the number of cases of Brand​ A, y represent the number of cases of Brand​ B, z represent the number of cases of Brand​ C, and w represent be the number of cases of Brand D.  There are four ways in which the breeder can mix brands to obtain a food that provides 3950 units of​ fiber, 3060 units of​ protein, and 2740 units of fat. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #757102 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39633)</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=757102\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> -----------<BR>\n" );
document.write( "How many cases of each brand should the breeder mix together to obtain a food that provides 3950 units of​ fiber, 3060 units of​ protein, and 2740 units of​ fat? <BR>\n" );
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document.write( "Let x represent the number of cases of Brand​ A, y represent the number of cases of Brand​ B, z represent the number of cases of Brand​ C, and w represent be the number of cases of Brand D. There are four ways in which the breeder can mix brands to obtain a food that provides 3950 units of​ fiber, 3060 units of​ protein, and 2740 units of fat.<BR>\n" );
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document.write( "BRAND       Variable       Fiber        Protein         Fat\r\n" );
document.write( "A              x            25            30            30\r\n" );
document.write( "B              y           100            80            70\r\n" );
document.write( "C              z           275           210           190\r\n" );
document.write( "D              w           100            80            60\r\n" );
document.write( "Needed                    3950          3060          2740\r\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=system%2825x%2B100y%2B275z%2B100w=3950%2C30x%2B80y%2B210z%2B80w=3060%2C30x%2B70y%2B190z%2B60w=2740%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "This is not a finished solution; but just a system of equations according to the described information and the given question.<BR>\n" );
document.write( "This has one fewer equation than number of variables.\r<BR>\n" );
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