document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1153174>Question 1153174</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A colony of bacteria originally contains 200 bacteria. It doubles in size every 30 minutes. How many hours will it take for the colony to contain 2,000 bacteria? (Round your answer to one 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 #775339 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=775339\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A colony of bacteria originally contains 200 bacteria. It doubles in size every 30 minutes. How many hours will it take for the colony to contain 2,000 bacteria?<BR>\n" );
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document.write( "t = # of 1/2 hour increments.<BR>\n" );
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document.write( "2000 = 200*2^t<BR>\n" );
document.write( "2^t = 10<BR>\n" );
document.write( "t*log(2) = log(10) = 1<BR>\n" );
document.write( "t = 1/log(2) =~ 3.322 half hours.<BR>\n" );
document.write( "etc </SPAN>\n" );
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