document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=206549>Question 206549</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I cannot find an example of this problem worked in my textbook. I even tried my various MathZone learning tools but still could not find an example. This is from Chapter 6.1 Reducing Rational Expressions - Will someone please provide an example of how to work this type problem with step by step instructions?\r<BR>\n" );
document.write( "\n" );
document.write( "Toxic pollutants. The cost, in million of dollars, to remove p% of toxic  chemicals from a town's water supply is given by the formula  \r<BR>\n" );
document.write( "\n" );
document.write( "C= 6,000/200-2x.  Answer the following questions:\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "a. What is the cost to remove 75% of the pollutants?\r<BR>\n" );
document.write( "\n" );
document.write( "b. Describe what happens to the cost as the percentage of pollutions removed increased from 75%  and moves toward 100%.\r<BR>\n" );
document.write( "\n" );
document.write( "c. According to this model, is it possible to remove 100% of the pollution? Why or why not? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #156235 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=156235\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Toxic pollutants. The cost, in million of dollars, to remove p% of toxic chemicals from a town's water supply is given by the formula <BR>\n" );
document.write( "C= 6,000/200-2x. Answer the following questions: \r<BR>\n" );
document.write( "\n" );
document.write( "a. What is the cost to remove 75% of the pollutants?<BR>\n" );
document.write( "C = 6000/(200-2*75) = 6000/50 = 120 million dollars<BR>\n" );
document.write( "----------------------------------------------------------------- <BR>\n" );
document.write( "b. Describe what happens to the cost as the percentage of pollutions removed increased from 75% and moves toward 100%.<BR>\n" );
document.write( "Cost increases as the percentage increases.<BR>\n" );
document.write( "----------------------------------------------------------------- <BR>\n" );
document.write( "c. According to this model, is it possible to remove 100% of the pollution? Why or why not?<BR>\n" );
document.write( "No, because C would equal 6000/(200-2*100) = 6000/0 which is undefined.<BR>\n" );
document.write( "============================================================================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );