Question

In mammals, the weight of the heart is approximately 0.5% of the total body weight. Write a linear model that gives the heart weight in terms of the whole body weight. Use the model to fins
a. the weight of a human whose weight is 120 lbs.

Answer 1

Answer: h=0.6 lbs

Let the whole body weight of a mammal be w Let the weight of the heart be h  It is given that the weight of the heart is 0.5% weight of the whole body weight.

$\Rightarrow h=0.5 \% \hspace{1mm} of \hspace{1mm} w\\ \Rightarrow h=\frac{0.5}{100}\times w\\ \Rightarrow h=0.005w$

It is given that the weight of the human, w=120 lbs

Hence, weight of the heart, $h = 0.005\times120lbs=0.6lbs$