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11 April, 16:49

Iodine-125 has a half-life of about 60 days.

How many milligrams of a 1000mg sample will remain after 240 days?

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  1. 11 April, 20:14
    0
    15.625

    Step-by-step explanation:

    y=b (1/2) ^t/h

    Substitute

    y=500 (1/2) ^300/60

    Solve

    y=500 (1/2) ^5

    y=500 x 0.03125

    y=15.625
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