document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1086427>Question 1086427</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A nursery uses two brands of fertilizer for rose bushes. Brand A costs $3 per pound and provides 280 units of nutrients per pound. Brand B costs $4 per pound and provides 180 units of nutrients per pound.  The nursery spends $100 or less for fertilizer and wants to provide at least 5200 units of nutrients. Because brand B contains a special nutrient that brand A does not, the nursery uses at least 4 pounds of brand B. How many pounds of each should the nursery use to minimize cost? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #700649 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=700649\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A nursery uses two brands of fertilizer for rose bushes. <BR>\n" );
document.write( "Brand A costs $3 per pound and provides 280 units of nutrients per pound. <BR>\n" );
document.write( "Brand B costs $4 per pound and provides 180 units of nutrients per pound. <BR>\n" );
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document.write( "The nursery spends $100 or less for fertilizer and wants to provide at least 5200 units of nutrients. <BR>\n" );
document.write( "Because brand B contains a special nutrient that brand A does not, the nursery uses at least 4 pounds of brand B. <BR>\n" );
document.write( "How many pounds of each should the nursery use to minimize cost?<BR>\n" );
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document.write( "Cost Inequality:: 3A + 4B <= 100<BR>\n" );
document.write( "Units Inequality: 280A + 180B >= 5200<BR>\n" );
document.write( "Weight Inequality B >= 4<BR>\n" );
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document.write( "Graph the inequalities; <BR>\n" );
document.write( "A <= -4B + 100<BR>\n" );
document.write( "A >= -180B + 5200<BR>\n" );
document.write( "B >= 4<BR>\n" );
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document.write( "Identify the appropriate vertices.<BR>\n" );
document.write( "Determine which coordinate pair minimizes cost.<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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document.write( "  </SPAN>\n" );
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