Suppose a countrys population in 1980 was 210 million. in 1990 it was 225 million. using the exponential growth formula, p=ae^kt, estimate the countrys population in 2000

P=Ae^kt
225 = 210 * e^(k*(1990-1980)
225/210=e^10k ln(225/210)=10k
k=ln(225/210)/10=0.0069
P = 210*e^(0.0069t)
for 2000 ===> t = 2000-1980=20
P = 210*e^(0.0069*20)
P=241.0749=241

Just look outside and then you’ll see where the awnser is

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