Question

The number of kilograms of water in a human body varies directly as the mass of the body. A 96-kg person contains 64 kg of water how many kilograms of water are in a 66-kg person?

Answer 1

44 kg

Explanation:

Since they vary directly, we can calculate the amount of water by means of the following proportion:

`\begin{gathered} (64)/(96)=(x)/(66) \\ \text{ we solve for x} \\ x=66\cdot(64)/(96) \\ x=44\text{ }kg\text{ of waer} \end{gathered}`

So that's 44 kilograms of water in a 66-kilogram person.