Question

Asked Nov 25, 2019

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On a college campus of 5,000 students, one student returns from vacation with a contagious flu virus. The spread of the virus is modeled by:

y=5000/(1+4999e^{-0.8t})

t is greater than or equal to 0

Where y is the total number infected after t days. The college will cancel classes when 40% or more of the students are infected.

After how many days will the college cancel classes?

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