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**delicate_tears** Equation is:

T represents temperature of water.

T=Me-kt , where t is equal or greater than 0. t represents time.

M= 55 and k = 0.0141 approx.

Question:

The time at which water is cooling at 1degree/second is -18.03, and hence is a puzzling answer( since time cannot take a negative value) . Explain why the answer is puzzling in terms of the student's model(equation)

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*If *55loge (0.986) = -0.7754 approx.

*and* T=55eloge (0.986t)

Show algebraic steps to obtain approximation and state value of approximation to 2 decimal places