document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=113634>Question 113634</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help I know nothing about this subject. Thank you<BR>\n" );
document.write( " For the following function, C computes the cost in millions of dollars of implementing a city recycling project when x percent of the citizens participate. C(x)= 1.4x<BR>\n" );
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document.write( "                    100-x<BR>\n" );
document.write( " A) using this model, approximately what is the cost if 60% of the citizens participate. answer and show work\r<BR>\n" );
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document.write( "B) using this model estimate the percentage of participation that can be excepted if $4 million is spent on this recycling project. Set up an equation and solve algebraically. Round to the nearest whole percent. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #82840 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=82840\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> For the following function, C computes the cost in millions of dollars of implementing a city recycling project when x percent of the citizens participate. \r<BR>\n" );
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document.write( "C(x)= <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1.4x%2F%28100-x%29 ALIGN=MIDDLE  ALT=\"1.4x%2F%28100-x%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "A) using this model, approximately what is the cost if 60% of the citizens participate. answer and show work<BR>\n" );
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document.write( "Substitute 60 for x in the above equation, find C(x)<BR>\n" );
document.write( "C(x)= <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1.4%2860%29%2F%28100-60%29 ALIGN=MIDDLE  ALT=\"1.4%2860%29%2F%28100-60%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "C(x)= <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=84%2F%2840%29 ALIGN=MIDDLE  ALT=\"84%2F%2840%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "C(x) = 2.1 million dollars when 60% participate<BR>\n" );
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document.write( "B) using this model estimate the percentage of participation that can be excepted if $4 million is spent on this recycling project. Set up an equation and solve algebraically. Round to the nearest whole percent.<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1.4x%2F%28100-x%29 ALIGN=MIDDLE  ALT=\"1.4x%2F%28100-x%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 4: substituted 4 for C(x)<BR>\n" );
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document.write( "Multiply equation by (100-x) to get rid of the denominator:<BR>\n" );
document.write( "1.4x = 4(100 - x)<BR>\n" );
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document.write( "1.4x = 400 - 4x<BR>\n" );
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document.write( "1.4x + 4x = 400<BR>\n" );
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document.write( "5.4x = 400<BR>\n" );
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document.write( "x = 400/5.4<BR>\n" );
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document.write( "x = 74% participation when 4 million is spent </SPAN>\n" );
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