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Im in the middle of modelling a logistic model off of population data but I am having a little bit of trouble. I am using a three parameter model

y=M/(1+Ce^-kt) and have set up three different equations to solve simultaneously. I originally used the value for when t=0 eliminating the k in one equation but I'm not too sure if i can use that to sub into the other equations. As far as solving it, I get to a point then become lost. Any help guys?

5.3= M/(1+Ce^-10k)

62.9=M/(1+Ce^-100k)

226.5=M/(1+Ce^-190k)

3.9 = M/(1+C)

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# Logistic Function

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