document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1173073>Question 1173073</A>: <I><SPAN STYLE=\"word-break: break-all;\"> help\r<BR>\n" );
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document.write( "A certain forest covers an area of 2100km^2. Suppose that each year this area decreases by 6.25%. What will the area be after 8 years?\r<BR>\n" );
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document.write( "Round to nearest square kilometer. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #798226 by </B><A HREF=/tutors/aboutme.mpl?userid=greenestamps><B>greenestamps(13200)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=greenestamps><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=greenestamps><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=798226\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <br><BR>\n" );
document.write( "The solution from the other tutor uses the formula for continuous exponential decay; that is not appropriate for the given question.<br><BR>\n" );
document.write( "The area of the forest decreases by 6.25% per year, so the area gets multiplied by 1-0.0625 = .9375 each year.  After 8 years, the original 2100 km^2 will be reduced to<br><BR>\n" );
document.write( "2100(0.9375)^8 = 1253 km^2<br><BR>\n" );
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