document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=65598>Question 65598</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/093979862x/algebrahomeworkh>An Incremental Development</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> A corn mean feed is 10% protein and a feed supplement is 40% protein. How much of each must be conbined to get 2400 pounds of feed that is 19% protein? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #46244 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=46244\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let x=amount of corn meal feed that is 10% protein<BR>\n" );
document.write( "Then 2400-x=amount of 40% supplement\r<BR>\n" );
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document.write( "Now we know that the amount of pure protein in the corn meal feed (.10)(x) plus the amount of pure protein in the 40% supplement (2400-x)(.40) must equal the amount of pure protein in the final mixture(2400)(.19).  So our equation to solve is:\r<BR>\n" );
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document.write( "(.10)(x)+(2400-x)(.40)=(2400)(.19) simplifying we get:\r<BR>\n" );
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document.write( ".10x+960-.40x=456 collecting like terms we have:<BR>\n" );
document.write( "-.30x=456-960<BR>\n" );
document.write( "-.30x=-504<BR>\n" );
document.write( "x=1680 pounds of 10% corn meal feed<BR>\n" );
document.write( "2400-x=2400-1680=720 pounds of 40% supplement \r<BR>\n" );
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document.write( "ck<BR>\n" );
document.write( "1680(.10)+720(.40)=2400(.19)<BR>\n" );
document.write( "168+288=456<BR>\n" );
document.write( "456=456\r<BR>\n" );
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document.write( "Hope this helps----ptaylor </SPAN>\n" );
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