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15 October, 09:02

a dish has 21,245,673 bacteria in it. The population of bacteria will decline by 80% every day. How many bacteria will be present in 4 days?

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  1. 15 October, 10:20
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    33993.0768

    Step-by-step explanation:

    You can multiply the number of bacteria by (0.2^4). The 0.2 is for the 20% that left after each day. The (^4) is for the 4 days that have passed.
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