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8 October, 04:52

At the beginning of an experiment, there are 400 grams of contaminants. Each hour, three-fourths of the contaminants are filtered out.

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  1. 8 October, 05:09
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    thats 300 grams filtered out per hour

    Step-by-step explanation:

    so 4/4ths of 400 is 400 but taking 3/4ths is turning it too 100 grams
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