document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=155488>Question 155488</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Soybean meal is 16% protein, cornmeal is 8% protein. How many pounds of each should be mixed togeather in order to get a 320 lb mixture that is 14% protein?\r<BR>\n" );
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document.write( "Soybean=\r<BR>\n" );
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document.write( "Coenmeal= </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #114565 by </B><A HREF=/tutors/aboutme.mpl?userid=ptaylor><B>ptaylor(2198)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ptaylor><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=ptaylor><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=114565\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Soybean=240 lb\r<BR>\n" );
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document.write( "Coenmeal=80 lb\r<BR>\n" );
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document.write( "Let x=amount of 16% protein needed<BR>\n" );
document.write( "Then 320-x=amount of 8% protein needed\r<BR>\n" );
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document.write( "Now we know that the amount of pure protein in the 16% mixture (0.16x) plus the amount of pure protein in the 8% mixture (0.08(320-x)) has to equal the amount of pure protein in the final mixture (0.14*320).  So our equation to solve is:<BR>\n" );
document.write( "0.16x+ 0.08(320-x)=0.14*320  get rid of parens and simplify\r<BR>\n" );
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document.write( "0.16x+25.6-0.08x=44.8  subtract 25.6 from each side\r<BR>\n" );
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document.write( "0.16x+25.6-25.6-0.08x=44.8-25.6 collect like terms\r<BR>\n" );
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document.write( "0.08x=19.2\r<BR>\n" );
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document.write( "divide each side by 0.08<BR>\n" );
document.write( "x=240 lb-----------------------amount of 16% mixture needed(soybean)\r<BR>\n" );
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document.write( "320-x=320-240=80 lb-------------amount of 8% mixture needed(cornmeal)\r<BR>\n" );
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document.write( "CK\r<BR>\n" );
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document.write( "240*0.16+80*0.08=320*0.14<BR>\n" );
document.write( "38.4+6.4=44.8\r<BR>\n" );
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document.write( "44.8=44.8\r<BR>\n" );
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document.write( "Hope this helps---ptaylor<BR>\n" );
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