document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=957111>Question 957111</A>: <I><SPAN STYLE=\"word-break: break-all;\"> the amount of bacteria after n min if the initial amount of bacteria is q and the amount of bacteria triples ever 15sec. (answer should contain both q and n) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #584788 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=584788\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> n is in minutes<BR>\n" );
document.write( "but we have the amount tripling every 15 seconds, so let's convert seconds to minutes (so the units line up)\r<BR>\n" );
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document.write( "15 seconds = 15/60 = 1/4 minutes\r<BR>\n" );
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document.write( "now divide the variable n by the time it takes to triple<BR>\n" );
document.write( "n divided by (1/4) = n*(4/1) = 4n\r<BR>\n" );
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document.write( "This will be the exponent over the base 3 since we're tripling the amount\r<BR>\n" );
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document.write( "We start with q and we will jump to 3q, then to 9q, etc\r<BR>\n" );
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document.write( "In general, the expression is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=q%2A3%5E%284n%29 ALIGN=MIDDLE  ALT=\"q%2A3%5E%284n%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > where n is in minutes. The 4n basically tells us \"the amount triples 4 times every minute\"\r<BR>\n" );
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document.write( "Answer: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=q%2A3%5E%284n%29 ALIGN=MIDDLE  ALT=\"q%2A3%5E%284n%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Jim\r<BR>\n" );
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