document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1422>Question 1422</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A wild birdseed mix is made by combining 100lb. of millet seed costing $0.60 per lb. with sunflower seeds costing $1.10 per pound.  How many pounds of sunflower seeds are needed to make a mixture that costs $0.70 per lb? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #477 by </B><A HREF=/tutors/aboutme.mpl?userid=DeepaEvangeline><B>DeepaEvangeline(15)</B></A><img src=\"/images/stars/stars-06.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=DeepaEvangeline><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=477\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Number of pounds of millet seed is x = 100lb<BR>\n" );
document.write( "Number of pounds of sunflower seed is y\r<BR>\n" );
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document.write( "Total pounds of the mix is x+y\r<BR>\n" );
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document.write( "Cost of millet seed is $0.60 per lb<BR>\n" );
document.write( "Cost of sunflower seed is $1.10 per lb\r<BR>\n" );
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document.write( "Cost of the mix is $0.70 per lb \r<BR>\n" );
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document.write( "Cost of the mix per lb = (x * 0.60 + y * 1.10) / (x+y) = 0.70\r<BR>\n" );
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document.write( "where x = 100\r<BR>\n" );
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document.write( "Therefore the above eqn becomes\r<BR>\n" );
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document.write( "(100 * 0.60 + 1.1y)/(100+y) = 0.70<BR>\n" );
document.write( "60 + 1.1y = 0.70(100+y)<BR>\n" );
document.write( "60 + 1.1y = 70 + 0.70y<BR>\n" );
document.write( "1.1y - 0.70y = 70 - 60<BR>\n" );
document.write( "0.40y = 10<BR>\n" );
document.write( "y = 10/.4 = 25\r<BR>\n" );
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document.write( "Therefore you require 25 pounds of sunflower seeds to make a mixture that costs $0.70 per lb. </SPAN>\n" );
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