document.write( "Question 1005118: Bacteria were introduced to a petri dish. Two hours after the introduction, there were 120411 bacteria. After seven hours since the introduction, there were 1083699 bacteria. \r
\n" ); document.write( "\n" ); document.write( "1.) Find the growth rate of the bacteria. (round to 3 decimal places)\r
\n" ); document.write( "\n" ); document.write( "2.) How many bacteria were initially introduced to the Petri dish? (Round to the nearest bacteria). \r
\n" ); document.write( "\n" ); document.write( "3.) How many bacteria will there be after 12 hours? (Round to the nearest bacteria). \r
\n" ); document.write( "\n" ); document.write( "4.) How long does it take for the bacteria colony to reach 361233 bacteria? (round to 2 decimal places)\r
\n" ); document.write( "\n" ); document.write( "Use Pe^rt equation!\r
\n" ); document.write( "\n" ); document.write( "PLEASE HELP ME !! \n" ); document.write( "

Algebra.Com's Answer #621435 by rothauserc(4718) $\"\"$ $\"About$

You can put this solution on YOUR website!
NP(t) = Pe^(rt), where NP is the new population, P is population you start with, r is the growth rate, and t is time
\n" ); document.write( "divide both sides of = by P
\n" ); document.write( "NP / P = e^(rt)
\n" ); document.write( "take the natural log of both sides of =
\n" ); document.write( "ln(NP/P) = rt
\n" ); document.write( "now see the answer I gave you in your problem 621283\r
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