Math

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Each female of a certain species of fish lays 100 eggs each fall and then dies. If only 30% of these eggs mature to become egg-producing females the next year , then how many egg-producing females will descend from a single egg-producing female 2 years after she first lays eggs ?

  • Math -

    amount=P(1+i)^t

    P=100
    i=.3
    t=2

  • Math -

    30% of the 100 eggs from the 1st female will mature, or 30 eggs.

    Start: 1 female lays 100 eggs, and 30 mature for the next year

    1 year later: 30 females lay 3000 eggs, and 900 mature for the next year

    2 years later: 900 females lay 9000 eggs, and 2700 will survive

  • Math -

    1800

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