Question

A hot air balloon holds 2,200 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?

392.7 kg

2,199.8 kg

2,200.2 kg

11,195.9 kg

Answer 1

@paki

Answer 2

use formula....

density=mass/volume

Answer 3

@shinebrightlikeadimon

Answer 4

but i don't know which numbers to plug in and where to plug in

Answer 5

what is density here....
what is mass here...
what is volume her...

Answer 6

read the question...and tell me...

Answer 7

@shinebrightlikeadimon

Answer 8

ok see.. here:

density is 0.1785 kilograms per cubic meter
volume is 2,200 cubic meters
and we need mass...

so just put all these in the formula and solve... @shinebrightlikeadimon

Answer 9

k give me a second

Answer 10

yeah do it...

Answer 11

392.7? is what i got

Answer 12

cause i multiplied them togeth i did 0.1785= mass/2200 and i had to find m so i did
0.1785*2200 = mass/ 2200*2200
392.7 = mass

Answer 13

yeah rite...

Answer 14

good

Answer 15

so A?

Answer 16

yes

Answer 17

i need help with more can you help?

Answer 18

yeah... i will try... and close this question too...