document.write( "Question 45015This question is from textbook
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document.write( ": The population P of a certain culture is expected to be given by a model P=100e^rt where r is a constant to be determined and t is a number of days since the original population of 100 was established. Find the value of r if the population is expected to reach 200 in 3 days.
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document.write( " My answer is 1.098 but I'm not sure if I set this one up right. Thanks for checking.
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Algebra.Com's Answer #29821 by Nate(3500)![]() ![]() ![]() You can put this solution on YOUR website! P = 100e^rt \n" ); document.write( "200 = 100e^r3 \n" ); document.write( "2 = e^3r \n" ); document.write( "ln(2) = ln(e^3r) \n" ); document.write( "ln(2) = 3r \n" ); document.write( "ln(2)/3 = r \n" ); document.write( "About 0.23105 \n" ); document.write( "23.105% \n" ); document.write( " |