Newton's Law of Cooling tells us that the rate of change of the temperature of an object is proportional to the temperature difference between the object and its surroundings. dT This can be modeled by the differential equation = k(T - A), where T is the dt temperature of the object after t units of time have passed, A is the ambient temperature of the object's surroundings, and & is a constant of proportionality. Suppose that a cup of coffee begins at 183 degrees and, after sitting in room temperature of 62 degrees for 15 minutes, the coffee reaches 173 degrees. How long will it take before the coffee reaches 155 degrees? Include at least 2 decimal places in your answer. minutes