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29 January, 00:54

Dr. Jimenez found that after applying an antibiotic to bacteria, he observed only 90% of the bacteria left in the culture dish each hour. If the initial bacteria count was 100, what was the bacteria count after 5 hours? Round to the nearest whole number. There were bacteria after 5 hours.

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  1. 29 January, 01:52
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    Count = 100 (0.90) ^t where t = number of hours

    after 5 hours the count will be 100 * (0.90) ^5 = 59 to nearest whole number
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