The population of Bridgeville, PA, is 5,300 with a growth rate of 1.3% per year. Which expression could be used to estimate the population of Bridgeville t years from now?

1 Answer
Dec 16, 2016

Answer:

#PA=5300(1+1.3)^t#

However, this equation does not take into account the death rate.

Explanation:

Let population be PA

Use the same equation they use to calculate compound interest

Principle sum is what you start with:#->P#

So we have: #->P(1+1.3/100)^t#

But #P=5300# giving:

#PA=5300(1+1.3)^t#