document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1077756>Question 1077756</A>: <I><SPAN STYLE=\"word-break: break-all;\"> there are currently 71 million cars in a certain county, decreasing by 1.5% annually how many years will it take for this country to have 42 million cars </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #692238 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=692238\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 42=71(1-0.015)^t<BR>\n" );
document.write( "42/71=.985^t<BR>\n" );
document.write( ".5915=.985^t<BR>\n" );
document.write( "ln both sides<BR>\n" );
document.write( "-.5250=tln (.985)=t*(-0.0151)<BR>\n" );
document.write( "t=34.77 years </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );