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Rufina [12.5K]
3 years ago
7

The current population of Smyrna, Maine, is 380 and grows at a rate of 3% per year. Which equation could be used to determine ho

w many years it will take for the population to reach 420 people?

Mathematics
1 answer:
Lena [83]3 years ago
6 0
The number of people after n years is calculated through the equation,
                            An = (Ao)(1 + r)^n
where An is the population after n years, Ao is the initial population and r is the rate. Substituting the known values,
                           420 = (380)(1 + 0.03)^n
The answer is letter A. 
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