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cupoosta
2 months ago
6

The rate of change (dP/dt), of the number of people on an ocean beach is modeled by a logistic differential equation. The maximu

m number of people allowed on the beach is 1200. At 10 A.M., the number of people on the beach is 200 and is increasing at the rate of 400 per hour. Whats the differential equation which can describe this situation?
Mathematics
1 answer:
tester [12.3K]2 months ago
3 0

Answer:

\frac{dP}{dt} = 2.4P(1 - \frac{P}{1200})

Step-by-step explanation:

The equation for the logistic differential model is:

\frac{dP}{dt} = rP(1 - \frac{P}{K})

In this scenario, we have that:

K = 1200, representing the carrying capacity for the population, which describes the utmost number of individuals permitted on the beach.

At 10 A.M., there are 200 individuals on the beach, increasing at a rate of 400 people per hour.

This implies\frac{dP}{dt} = 400 when P = 200. From this, we can derive r, the growth rate,

Thus

\frac{dP}{dt} = rP(1 - \frac{P}{K})

400 = 200r(1 - \frac{200}{1200})

166.67r = 400

r = 2.4

Consequently, the differential equation is:

\frac{dP}{dt} = rP(1 - \frac{P}{K})

\frac{dP}{dt} = 2.4P(1 - \frac{P}{1200})

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