Solve Gompertz Model for Population Growth with Help | TIA

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SUMMARY

The discussion focuses on solving the Gompertz model for population growth, specifically the differential equation dy/dt = -ryln(y/k) with parameters r = 0.67 per year and K = 36500 kg. The goal is to find the predicted value of y(4), which is established as 31374 kg. Participants emphasize the need to solve the first-order, homogeneous, nonlinear equation for y(t) to arrive at the solution.

PREREQUISITES
  • Understanding of differential equations, specifically first-order and nonlinear types.
  • Familiarity with the Gompertz model and its application in population dynamics.
  • Knowledge of logarithmic functions and their properties in mathematical modeling.
  • Basic skills in numerical methods for solving differential equations.
NEXT STEPS
  • Study methods for solving first-order nonlinear differential equations.
  • Learn about the application of the Gompertz model in biological systems.
  • Explore numerical techniques such as Euler's method for approximating solutions.
  • Investigate the implications of population growth models on resource management.
USEFUL FOR

Mathematicians, biologists, and data scientists interested in population modeling and differential equations will benefit from this discussion.

rroy81
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I need help in solving the following solution.
The Gompertz model has been used to model population growth.
dy/dt = -ryln(y/k), where r = 0.67 per year, K = 36500 kg,

Use the Gompertz model to find the predicted value of y(4) .

TIA.
 
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What have you tried so far?
 
Mute said:
What have you tried so far?

That's just it...I am not to sure how to tackle the problem. I know the answer is 31374 kg.

How do I get is what I need help with.

Thanks!
 
Have you tried solving the differential equation? Do you have any ideas about how you might try to solve it? I'll give you a hint: t does not appear explicitly, and it is a first-order, homogeneous (but nonlinear) equation for y(t). Does this give you any ideas?
 

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