Newton's law of cooling relates the rate at which a body cools to the difference in temperature between the body and the environment into which it is introduced. The formula is F(1) = To + Cb, where F(1) is the temperature of the body at time t, To is the constant temperature of the environment into which the body is introduced, and C and b are constants. Use Newton's law of cooling to solve the problem below. A cup of coffee has cooled from 92" to 50" after 11 minutes in a room at 22 . How long will it take to cool to 30 ? It will take approximately |minutes (Round to the nearest integer as needed.)