document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=978545>Question 978545</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The amount of money in an investment is modeled by the function A(t)=600(1.054)^t. The variable A represents the investment balance in dollars, and t the number of years. \r<BR>\n" );
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document.write( "What is the doubling time for the investment? Round answer to 1 decimal place. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #599902 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=599902\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The amount of money in an investment is modeled by the function A(t)=600(1.054)^t. The variable A represents the investment balance in dollars, and t the number of years. <BR>\n" );
document.write( "What is the doubling time for the investment? Round answer to 1 decimal place.<BR>\n" );
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document.write( "The investment has doubled when A(t) = 1200<BR>\n" );
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document.write( "Solve::<BR>\n" );
document.write( "2 = (1.054)^t<BR>\n" );
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document.write( "t = log(2)/log(1.054)<BR>\n" );
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document.write( "t = 13.2 years<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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