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27 September, 15:02

The amount of caffeine at time 1 hours if there are 80 mg at the start and the quantity decays by 15% per hour.

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  1. 27 September, 15:23
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    after one hour you have 68

    Step-by-step explanation:

    80 times 0.015 is 1.2 so 80-12 is 68
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