Answer to Question #57020 in Algebra for Jeff

Question #57020

: A lake is stocked with 1,500 young trout. If the number of the original trout alive after x years is given by the function P(x) = 1,500 e^-0.4x , When will there be 300 of the original trout left.?

: A hot bowl of soup cools accordingly to Newton's law of cooling. Its temperature (in degrees Fahrenheit) at time t is given by T(t) = 68 + 144e^-.04t , where t is given in minutes.

What was the initial temperature of the soup?:
What was the temperature of the soup after 15 minutes?:
How long after serving is the soup 125 Degrees F?:

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