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.Com
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(2933)   (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!!!

RELATED QUESTIONS

Help... The population P of a certain culture is expected to be given by a model... (answered by stanbon)
Please help me with this problem.I am having a lot of issues with these types of... (answered by ankor@dixie-net.com)
The population P of a certain culture is expected to be given by a model P=100e^rt where... (answered by Nate)
THE POPULATION P OF A CERTAIN CULTURE IS EXPECTED TO BE GIVEN BY A MODEL P=100e^rt WHERE... (answered by stanbon)
Hi. "The population P of a certain culture is expected tp be given by a model... (answered by funmath)
The population P of a certain culture is expected to be given by a model p=100e^(rt)... (answered by ankor@dixie-net.com)
The population P of a certain culture is expected to be given by a model p=100e^rt where... (answered by ankor@dixie-net.com)
The population P of a certain culture is expected to be given by a model P=100e^rt where... (answered by Nate)
the population P of a certain culture is expected to be given by a mdoel P=100e^(rt)... (answered by Nate)