A hot air balloon holds 3,249 cubic meters of helium. The density of helium is 0.1785 kilograms per cubic meter. How many kilogr

Question

3 years ago

9

A hot air balloon holds 3,249 cubic meters of helium. The density of helium is 0.1785 kilograms per cubic meter. How many kilogr

ams 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

Mathematics

2 answers:

Mnenie [13.5K] · Answer 1 · 2022-01-14T23:48:22+03:00

Mnenie [13.5K]3 years ago

7 0

Answer:

D: 579.9 kg

Step-by-step explanation:

3,249 * 0.1785 = m/3,249 * 3,249

professor190 [17] · Answer 2 · 2022-01-14T22:38:02+03:00

We find the answer by using the density formula: d =m/v
We know the density: 0.1785
We know the volume: 3,249
We DO NOT know the mass, so that is what we're trying to finding
0.1785 = m/3,249
Solve:
3,249 * 0.1785 = m/3,249 * 3,249
579.9465 which can be rounded to 579.9
The answer is D.