# A weather balloon holds 2,000 cubic meters of helium. The density of helium is 0.1765 kilograms per cubic meter. How many kilograms of helium does the balloon contain?

Mar 1, 2017

Approx. $350 \cdot k g$

#### Explanation:

$\rho , \text{density"="Mass"/"Volume}$

And thus $\text{Mass}$ $= \rho \times \text{volume}$

And here, $\text{Mass}$ $=$ $0.1765 \cdot k g \cdot {m}^{-} 3 \times 2000 \cdot {m}^{3}$

$= 353 \cdot k g$