document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=445764>Question 445764</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If the doubling time of a state’s population is 42 years, how long does it take for the population to increase by a factor of 16? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #307005 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=307005\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> If the doubling time of a state’s population is 42 years, how long does it take for the population to increase by a factor of 16?<BR>\n" );
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document.write( "A(t) = Ao*2^(t/42)<BR>\n" );
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document.write( "Solve:<BR>\n" );
document.write( "16Ao = Ao*2^(t/42)<BR>\n" );
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document.write( "2^(t/42) = 16<BR>\n" );
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document.write( "2^(t/42) = 2^4<BR>\n" );
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document.write( "t/42 = 4<BR>\n" );
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document.write( "t = 4*42 = 168 years<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "============ </SPAN>\n" );
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