Question

HELP, MEDAL!!

Answer 1

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 2

This one is fairly simple.

Just take how much helium it can hold (3,249) and multiply it by the density of the helium (0.1785).

3,249 * 0.1785 = Your answer.

And don't forget to round it to the nearest tenth of a kilogram.~

Answer 3

Okay thank you so much! can you help me with one more?

Answer 4

A cylinder has a radius of 4 feet and a height of 6 feet. Which of the following can be used to calculate the volume of a cone that fits exactly inside the cylinder?

1 over 3(3.14)(42)(6)
(3.14)(42)(6)
1 over 3(3.14)(62)(4)
(3.14)(62)(4)