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Math Help - population growth

  1. #1
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    Oct 2008
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    Question population growth

    A population grows from its initial level of 22,000 at a continuous growth rate of 7.1% per year.

    A) Find a formula for P(t), the population in year t.

    My answer for a:
    Population= 22,000e^(.017*t)

    B) By what percent does the population increase each year?

    Is my answer to a correct and how do I do b?
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  2. #2
    MHF Contributor
    Joined
    Apr 2008
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    Quote Originally Posted by Kate182 View Post
    Is my answer to a correct and how do I do b?
    The population equation should be

    P(t) = 22000(1.071)^t.

    The population increases at a rate of 7.1% per year, so each year, the population will increase by 7.1% over its previous amount.
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