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1 September, 14:42

You discovered 1000 grams of an unknown element called Coolium 23 that has a half life 23 days. How long will it take for you to have 600 grams remaining.

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  1. 1 September, 17:03
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    13.8 days

    Step-by-step explanation:

    In this case we can solve it by means of a rule of three, knowing the amount of life for 1000 grams, it must be proportional for 600 grams, like this:

    grams days

    1000 23

    600 x

    x = 600 * 23/1000

    x = 13.8

    which means that for the 600 grams it would be an average life of 13.8 days.
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