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A 73-year-old woman is admitted to the hos- pital for intravenous treatment of an abscess caused by Staphylococcus aureus. Subsequent to her treatment and discharge from the hos- pital, it is necessary to disinfect the hospital room. One thousand of the S aureus cells are exposed to a disinfectant. After 10 minutes, 90% of the cells are killed. How many cells re- main viable after 20 minutes?​

Respuesta :

Answer:

12

Explanation:

mathmate

Answer:

10

Explanation:

It will be assumed that the disinfection follows the exponential law.

Surviving organisms will remain at the rate of 10% / 10 minutes.

Initial number of organisms = 1000

surviving staphylococcus aureus after 20 minutes

= 1000 * (0.10)^(20/10)

= 1000 * 0.01

= 10

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