For a birthday party, Mrs. Guilliano bought 11 spherical balloons, each with an inflated diameter of 1.5 ft. What is the volume of helium needed to fill all 11
Mathematics
genunghaley
Question
For a birthday party, Mrs. Guilliano bought 11 spherical balloons, each with an inflated diameter of 1.5 ft.
What is the volume of helium needed to fill all 11 balloons?
Select from the dropdown menu to correctly complete the statement.
The volume of helium needed to fill 11 balloons is about (1.8) (14.1) (19.4) (155.1) ft³
What is the volume of helium needed to fill all 11 balloons?
Select from the dropdown menu to correctly complete the statement.
The volume of helium needed to fill 11 balloons is about (1.8) (14.1) (19.4) (155.1) ft³
2 Answer

1. User Answers Anonym
Your answer should be C: 19.4 
2. User Answers isyllus
Answer:
The volume of helium needed to fill 11 balloons is 19.4 ft³
C is correct
Stepbystep explanation:
For a birthday party, Mrs. Guilliano bought 11 spherical balloons, each with an inflated diameter of 1.5 ft.
Balloons are spherical with diameter 1.5 ft
Radius of spherical = Half of diameter
Radius (r) = 0.75 ft
[tex]\text{Volume of Sphere}=\dfrac{4}{3}\pi r^3[/tex]
Volume of each balloon [tex]=\dfrac{4}{3}\pi (0.75)^3\Rightarrow 1.767[/tex] ft³
Amount of helium for 1 balloon = 1.767 ft³
Amount of helium for 11 balloons = 11 x 1.767 = 19.4 ft³
Hence, The volume of helium needed to fill 11 balloons is 19.4 ft³