document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=144261>Question 144261</A>: <I><SPAN STYLE=\"word-break: break-all;\"> There are currently 50 million cars in a certain country, decreasing by 4.9% annually. How many years will it take for this country to have 27 million cars? Round to the nearest year. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #105076 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=105076\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> There are currently 50 million cars in a certain country, decreasing by 4.9% annually. How many years will it take for this country to have 27 million cars? Round to the nearest year.<BR>\n" );
document.write( "----------------------<BR>\n" );
document.write( "A(t) = Ao(1-0.049)^t<BR>\n" );
document.write( "27 mil = 50 mil (0.951)^t<BR>\n" );
document.write( "0.951^t = (27/50)<BR>\n" );
document.write( "t[log0.951] = log[27/50]<BR>\n" );
document.write( "t = 12.264 years<BR>\n" );
document.write( "=================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );