## kenialove one year ago Earths atmosphere is 78% nitrogen by volume. About how much nitrogen is in a tank containing 600 cubic meters of air ? A. 132 m^3 B. 169 m^3 C. 420 m^3 D. 468 m^3

1. Michele_Laino

the requested volume is given, by definition of percentage, by this computation: $\Large V = \frac{{78}}{{100}} \cdot {V_{TOTAL}} = \frac{{78}}{{100}} \cdot 600 = ...?$

2. kenialove

So the answer is D. 468 m^3 ? 78/100 = 0.78 0.78 x 600 = 468

3. Michele_Laino

yes!

4. kenialove

Thanks so much

5. Michele_Laino

:)