Question

A hot air balloon holds 3,249 cubic meters of helium. The density of helium is 0.1785 kilograms per cubic meter. How many kilograms of helium does the balloon contain, rounded to the nearest tenth of a kilogram?

1,873.4 kg

2,194.6 kg

2,721.2 kg

579.9 kg

Answer 1

@ShailKumar

Answer 2

@cormacpayne

Answer 3

\[\rho = \frac{ m }{ v }\]

Answer 4

You are given the density and the volume, just solve for the mass.

Answer 5

0.1785=m/3249?

Answer 6

Yup!

Answer 7

so 0.1785*3249?

Answer 8

Exactly!