document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=107575>Question 107575</A>: <I><SPAN STYLE=\"word-break: break-all;\"> It is estimated that at the present rate of deforestation in El Salvador, in 20 years only 53% of the present forest will remain. How long will it take to remove 95% of the forest? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #78344 by </B><A HREF=/tutors/aboutme.mpl?userid=josmiceli><B>josmiceli(19441)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josmiceli><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=josmiceli><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=78344\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> I'm assuming this is a linear relation with a negative slope.<BR>\n" );
document.write( "I want the vertical axis to be p = percent of present forest<BR>\n" );
document.write( "remaining<BR>\n" );
document.write( "The horizontal axis is years from the present<BR>\n" );
document.write( "The points given are<BR>\n" );
document.write( "P1 = (20,.53)<BR>\n" );
document.write( "P2 = (x,.05) note that 95% removed leaves 5% left<BR>\n" );
document.write( "Also I have the p-intercept (0,1) where 0  represents the present<BR>\n" );
document.write( "The equation is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=p+=+mx+%2B+1 ALIGN=MIDDLE  ALT=\"p+=+mx+%2B+1\"   DISABLED_style= \"max-width:90%; height:auto;\" > note that when x=0, p = 1 <BR>\n" );
document.write( "The slope is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28p%5B2%5D+-+p%5B1%5D%29+%2F+%28x%5B2%5D+-+x%5B1%5D%29 ALIGN=MIDDLE  ALT=\"%28p%5B2%5D+-+p%5B1%5D%29+%2F+%28x%5B2%5D+-+x%5B1%5D%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+m+=+%28.53+-+1%29+%2F%2820+-+0%29 ALIGN=MIDDLE  ALT=\"+m+=+%28.53+-+1%29+%2F%2820+-+0%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=m+=+-.47+%2F+20 ALIGN=MIDDLE  ALT=\"m+=+-.47+%2F+20\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=m+=+-.0235 ALIGN=MIDDLE  ALT=\"m+=+-.0235\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=p+=+-.0235x+%2B+1 ALIGN=MIDDLE  ALT=\"p+=+-.0235x+%2B+1\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "The question is, when p = .05, what is x?<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=.05+=+-.0235x+%2B+1 ALIGN=MIDDLE  ALT=\".05+=+-.0235x+%2B+1\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-.0235x+=+-.95 ALIGN=MIDDLE  ALT=\"-.0235x+=+-.95\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+40.43 ALIGN=MIDDLE  ALT=\"x+=+40.43\"   DISABLED_style= \"max-width:90%; height:auto;\" >years answerThis is about 40 y 5 m 5 d<BR>\n" );
document.write( "  </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );