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Math Help - Functions

  1. #1
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    Functions

    In 2006, the population of a country was 50 million and growing at the rate of 1.8% per year. Assuming the percentage growth rate remains constant, express the population, P (in millions), as a function of t, the number of years after 2006.
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  2. #2
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    Hello, asweet1!

    In 2006, the population of a country was 50 million and growing at the rate of 1.8% per year.
    Assuming the percentage growth rate remains constant, express the population, P (in millions),
    as a function of t, the number of years after 2006.

    If the population increases at a rate of 1.8% per year,
    . . each year's population is 1.018 times the previous year's population.
    This is identical to a compound interest problem.

    The function is: . P(t) \;=\;50(1.018)^t

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