Answer: writein the manner of Eqs. (3)through (6) of this sectiona differential equation
Chapter 3, Problem 35(choose chapter or problem)
writein the manner of Eqs. (3)through (6) of this sectiona differential equation that is amathematical model of the situation described.In a city having a fixed population of P persons, the timerate of change of the number N of those persons who haveheard a certain rumor is proportional to the number ofthose who have not yet heard the rumor.
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