Solve the problem. Round your answer to the nearest whole number.In an epidemiological model used to study the spread of drug use, a single drug user is introduced into a population of N non-users. Under certain assumptions, the number of people expected to use drugs as a result of direct influence from each drug user is given by , where b and k are constants. Find the value of S.

A. 3Ne-bkt
B. 3N/(b + k)
C. N(1 - e-kt)e-bt
D. 3N/[b(b + k)]


Answer: D

Mathematics

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