A certain number changes from 200 to 900 within three hours find the vaulue of k using the formula n times e raised to k times t

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  1. 900 = 200 e^(kt)
    Assume t is measured in hours. Then
    900 = 200 e^(3k)
    ln (9/2) = 1.504 = 3k
    k = 0.501 h^-1 (0.501 per hour)

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