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21 December, 17:32

A 33 gram sample of a substance that's used for drug research has a k-value of 0.1124.

Find the substance's half-line, in days. Round your answer to the nearest tenth ...?

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  1. 21 December, 19:47
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    1/2 = e^10.1124t

    t = ln (0.5) / 0.1124

    t = 6.1667

    t = 6 days
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