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A city's population is currently 189,000. If the population doubles every 55 years, what willthe population be 275 years from now?

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ANSWER


6,048,000

Step-by-step explanation

The population doubles every 55 years. This implies that the rate of increase is 200% or 2 times and the time will be measured in terms of 55 years.

We can write an exponential function representing this:


A=A_0\cdot r^{(t)/(55)}

where t = number of years

r = rate = 2

A0 = initial population of city

We have to solve for A when t = 275.

Therefore:


\begin{gathered} A=189000\cdot2^{((275)/(55))} \\ A=189000\cdot2^5 \\ A=6,048,000 \end{gathered}

That will be the population 275 years from now.

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