Question 93322
Two people with flu visit a campus. The number of days T it took for the flu viruses to infect n people is given by: T=-1.43Ln(10,000-n/4998n)
how many days will it take to infect 500 people? 

:
Assume you mean:
T = -1.43 * {{{ln((10000-n)/(4998*n))}}}
:
Enter this into your calc:
T = -1.43 * {{{ln((10000-500)/(4998*500))}}}
:
T = -1.43 * {{{ln((9500)/(2499000))}}}
:
Enter into your calc: -1.43 * {{{ln((9500)/(2499000))}}}
: 
ans: 7.968 ~  8 days