P(t)=P(base e)^kt word problems?

Thunder

New member
problem 1:
if the current population is 15,000, how many years will it take the population to reach 37,500 if the following function P(t)=1+ke^0.12t where k is a constant and t is time in years. will it be 3, 5,8,18, or 51 yrs?

problem 2:
using the expontial growth model P(t)=P(base0)e^kt, how long will it take a price to double at a 7% annual inflation rate? Will it be 9, 16, 17, 10 or 25 years?
 
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