An inflated beach ball with radius r = 20 centimeters holds approximately 33,500 cubic centimeters of air. When the ball is compressed, the radius is 2/3 the original size. Approximately how much air does the partially deflated ball now hold?

Question

anonymous · Answer

someone help me

anonymous · Answer

you have to use this formula 
Volume = 4/3 * pi * r^3

anonymous · Answer

@valeria_fl i know i have to use that formula but its soooo hard for me do you get it?

anonymous · Answer

I dont really get it,.. Im working on it though if you give me a min i might have it figured out for you and give you some tips, so if you everhave a nother problem like this you can do it by your self.

anonymous · Answer

@valeria_fl thanks you sooo much YOUR A LIFE SAVER!

anonymous · Answer

You're asking what is the volume of a sphere with a radius of 20 cm....

V = 4/3 * 3.14 * 20^3

you should just be able to plug that into a calculator and get your answer..

anonymous · Answer

@valeria_fl i hope ts not to much trouble to ask but can you put the info into a calculator for me im in no reach of a calculator

anonymous · Answer

33493.3333
so im thinking that ir will be 33493^3
if you have to put in fraction form, this would look like 100480/3