# SOLUTION: PLEASE HELP ME WITH THIS PROBLEM: 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 da

Algebra ->  Algebra  -> Exponential-and-logarithmic-functions -> SOLUTION: PLEASE HELP ME WITH THIS PROBLEM: 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 da      Log On

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 Click here to see ALL problems on Exponential-and-logarithmic-functions Question 55172: PLEASE HELP ME WITH THIS PROBLEM: 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.Answer by funmath(2925)   (Show Source): You can put this solution on YOUR website!The population P of a certain culture is expected to be given by a model 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. P=200 and t=3 Take the natural log of both sides: Use this rule to rewrite the equation: Remember this rule You need a scientific calculator for that. Round off to wherever your asked. Happy Calculating!!!