document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=490773>Question 490773</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a culture started with 5000 bacteria. after 4 hours it grew to 5500.predict how many bacteria will be after 13 hours. </SPAN>\n" );
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document.write( "A culture started with 5000 bacteria. After 4 hours it grew to 5500.<BR>\n" );
document.write( "A(t) = Ao*b^t<BR>\n" );
document.write( "5500 = 5000*b^4<BR>\n" );
document.write( "1.1 = b^4<BR>\n" );
document.write( "b = 1.1^(1/4)<BR>\n" );
document.write( "----<BR>\n" );
document.write( "Equation:<BR>\n" );
document.write( "A(t) = 5000*1.1^(t/4)<BR>\n" );
document.write( "------<BR>\n" );
document.write( "Predict how many bacteria will be after 13 hours.<BR>\n" );
document.write( "A(13) =5000*1.1^(13/4) <BR>\n" );
document.write( "-------------------<BR>\n" );
document.write( "A(13) = 6815.48<BR>\n" );
document.write( "Round up to 6816 bacteria<BR>\n" );
document.write( "======================================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );