document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=841433>Question 841433</A>: <I><SPAN STYLE=\"word-break: break-all;\"> how long it take an investment to quadruple in value if it earns 4% simple interest per year? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #506923 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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=506923\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> how long it take an investment to quadruple in value if it earns 4% simple interest per year?\r<BR>\n" );
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document.write( "A = P(1 + rt)\r<BR>\n" );
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document.write( "4P = P(1 + rt)\r<BR>\n" );
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document.write( "4P = P(1 + 0.04t)\r<BR>\n" );
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document.write( "4P/P = 1 + 0.04t\r<BR>\n" );
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document.write( "4 = 1 + 0.04t\r<BR>\n" );
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document.write( "4-1 = 0.04t\r<BR>\n" );
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document.write( "3 = 0.04t\r<BR>\n" );
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document.write( "0.04t = 3\r<BR>\n" );
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document.write( "t = 3/0.04\r<BR>\n" );
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document.write( "t = 75\r<BR>\n" );
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document.write( "It will take <font color=\"red\">75 years</font> for the investment to quadruple. </SPAN>\n" );
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