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14. The mass in kilograms of salt in a brine solution as a solution of different concentration is being poured into the container, is M

14. The mass in kilograms of salt in a brine solution as a solution of different concentration is being poured into the container, is M = 20(1.5 + e -.), where t is the time in minutes. Determine an equation for the rate of change of the mass of the salt in the brine solution. After 5 minutes, what is the rate of change of the mass of the salt in the solutions? 15 (T/I,A)

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