SOLUTION: a bacteria culture doubles in size in 8 hours. how long will it tak for the size to triple? assume that the rate of increase of the culture is proportional to the size.

Question 718776: a bacteria culture doubles in size in 8 hours. how long will it tak for the size to triple?
assume that the rate of increase of the culture is proportional to the size.
Answer by josgarithmetic(39620) (Show Source): You can put this solution on YOUR website!
First find k in the relationship, , where t is time in hours, P is initial population, A is population at time t. The 8 hour case gives you . Next step, divide both sides by P. Next, take logarithms of both sides. Maybe this will be enough for you to know how to finish.
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