document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=113785>Question 113785</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0131953648/algebrahomeworkh>Blitzer</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> C computes the cost inmillions of dollars of implementing a city recycling project when x percent of the citizens participate. C(x)=1.4x/(100-x)\r<BR>\n" );
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document.write( "Using this model, approx what is the cost if 60% of the citiznes participate?\r<BR>\n" );
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document.write( "this is what I have - is this correct?  C=1.4 times 60 over 100-60, which would be 2.1 million.  \r<BR>\n" );
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document.write( "I do not know how to write the formula for part b, which is to estimate the percentage of participation that can be expected if 4 million is spent on the project. Set up an equation and solve algebraically, rounding to the nearest whoel percent. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #82804 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=82804\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> C(x)=1.4x/100-x <BR>\n" );
document.write( "Using this model, approx what is the cost if 60% of the citiznes participate? <BR>\n" );
document.write( "this is what I have - is this correct? C=1.4 times 60 over 100-60, which would be 2.1 million. <BR>\n" );
document.write( "That looks good.<BR>\n" );
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document.write( "I do not know how to write the formula for part b, which is to estimate the percentage of participation that can be expected if 4 million is spent on the project. Set up an equation and solve algebraically, rounding to the nearest whole percent.<BR>\n" );
document.write( "4 = 1.4x/(100-x)<BR>\n" );
document.write( "Cross-multiply to get:<BR>\n" );
document.write( "400-4x = 1.4x<BR>\n" );
document.write( "5.4x = 400<BR>\n" );
document.write( "x = 74%<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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