document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=195269>Question 195269</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0321233832/algebrahomeworkh></A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> A cell divides into two identical copies every 4 minutes. How many cells will exist after 5 hours? Here is the answer, I was told I have a typo in it, cannot find it.\r<BR>\n" );
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document.write( "  	Growth Formula<BR>\n" );
document.write( "A(t)=A<sub>o</sub>(2)^(t4) where t is the number of minutes after t=0\r<BR>\n" );
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document.write( "A(300)= 1*2^(300/4)<BR>\n" );
document.write( "A(300)=2^(75)<BR>\n" );
document.write( "A(300)= 3.77x10^22 cells\r<BR>\n" );
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document.write( "Thanks </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #146459 by </B><A HREF=/tutors/aboutme.mpl?userid=Edwin+McCravy><B>Edwin McCravy(20060)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Edwin+McCravy><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=Edwin+McCravy><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=146459\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A cell divides into two identical copies every 4 minutes. How many cells will exist after 5 hours? Here is the answer, I was told I have a typo in it, cannot find it.\r<BR>\n" );
document.write( "\n" );
document.write( "  	Growth Formula<BR>\n" );
document.write( "A(t)=A<sub>o</sub>(2)^(t4) where t is the number of minutes after t=0\r<BR>\n" );
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document.write( "A(300)= 1*2^(300/4)<BR>\n" );
document.write( "A(300)=2^(75)<BR>\n" );
document.write( "A(300)= 3.77x10^22 cells\r<BR>\n" );
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document.write( "Thanks\r<BR>\n" );
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document.write( "At the beginning there is 1, or 2^0 cells.<BR>\n" );
document.write( "At the instant the 1st four minutes is up, there will be 2, or 2^1 cells. <BR>\n" );
document.write( "At the instant the 2nd four minutes is up, there will be 4, or 2^2 cells. <BR>\n" );
document.write( "At the instant the 3rd four minutes is up, there will be 8, or 2^3 cells.<BR>\n" );
document.write( "At the instant the 4th four minutes is up, there will be 16, or 2^4 cells.<BR>\n" );
document.write( "At the instant the 5th four minutes is up, there will be 8, or 2^5 cells. \r<BR>\n" );
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document.write( "Every hour consists of 15 four-minute periods, since 60 divided by 4 is 15.\r<BR>\n" );
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document.write( "So 5 hours consiste of 5x15 or 75 four-minute periods, therefore\r<BR>\n" );
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document.write( "At the instant the 5th four minutes is up, there will be 8, or 2^75 cells.\r<BR>\n" );
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document.write( "So the answer is 2^75 which is a 23-digit number.\r<BR>\n" );
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document.write( "So A(300)=2^(75)\r<BR>\n" );
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document.write( "would be the correct choice.  The 300 is because there are 300 minutes<BR>\n" );
document.write( "in 5 hours.\r<BR>\n" );
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document.write( "Edwin</pre><BR>\n" );
document.write( " </SPAN>\n" );
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