Certain chemotherapy dosages depend on a patient's surface area. According to the Mosteller mode

First, we need to find the derivative of the surface area with respect to time. We know that the

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Certain chemotherapy dosages depend on a patient's surface area. According to the Mosteller model, $$s=\frac{\sqrt{h w}}{60}$$ where $h$ is the patient's height in centimeters, w is the patient's weight in kilograms, and $S$ is the approximation to the patient's surface area in square meters. (Source: www.halls.md.) Assume that Tom's height is a constant $165 \mathrm{cm},$ but he is on a diet. If he loses $2 \mathrm{kg}$ per month. how fast is his surface area decreasing at the instant he weighs $70 \mathrm{kg} ?$

          Certain chemotherapy dosages depend on a patient's surface area. According to the Mosteller model,
$$s=\frac{\sqrt{h w}}{60}$$
where $h$ is the patient's height in centimeters, w is the patient's weight in kilograms, and $S$ is the approximation to the patient's surface area in square meters. (Source:
www.halls.md.) Assume that Tom's height is a constant $165 \mathrm{cm},$ but he is on a diet. If he loses $2 \mathrm{kg}$ per month. how fast is his surface area decreasing at the instant he weighs $70 \mathrm{kg} ?$

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