Question

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

Answer 1

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

Answer 2

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

Answer 3

yes!

Answer 4

Thanks so much

Answer 5

:)