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12 February, 14:18

a culture started with 6,000 bateria after 6 hours, it grew to 7,200. predict how many bacteria will be present after 17 hours round your answer to the nearest whole number

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Answers (2)
  1. 12 February, 18:06
    0
    10,058

    Step-by-step explanation:

    7200 = 6000 (r) ⁶

    r⁶ = 1.2

    r = 1.2^⅙

    In 17 hours,

    6000 (1.2^⅙) ¹⁷

    10057.68696
  2. 12 February, 18:18
    0
    10058

    Step-by-step explanation:

    The equation is of the form

    y = ab^x

    Where a is the initial value, y is the final amount and x is the time

    y = 6000 b^x

    7200 = 6000 b^6

    Divide each side by 6000

    7200/6000 = b^6

    1.2 = b^6

    Take the 6th root on each side

    1.2 ^ 1/6 = b^6 ^ 1/6

    1.030853321 = b

    y = 6000 (1.030853321) ^ x

    Let x = 17

    y = 6000 (1.030853321) ^ 17

    y=10057.68696

    Rounding to the nearest whole number

    y = 10058
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