Please help! Already did work! Just need help!

Question

anonymous · Answer

I already calculated that there were 12, 065 pennies in a jar,  it says to find how much space is in the jar left over, the cylinders volume is 324.99.

anonymous · Answer

I would assume you would multiply 12,065 by its volume, then subtract that from 324.99. But I keep coming up with 0.0745453125.

anonymous · Answer

@hartnn

anonymous · Answer

@ganeshie8

hartnn · Answer

and how much space one penny takes ?

anonymous · Answer

0.0269353125

anonymous · Answer

@hartnn

hartnn · Answer

so , 
space taken by 1 penny * numer of pennies will give you total space taken in the jar

anonymous · Answer

Yes, that's what I did. And then I did 324.9745453125-324.9

hartnn · Answer

the other way round, 
324.99 - 324.9745...

anonymous · Answer

Sorry my computer just shut off

anonymous · Answer

So now I have to redo my work

anonymous · Answer

But this is the answer I keep getting: 0.0154546875. It's just a really small number so I keep thinking it's wrong @hartnn

hartnn · Answer

as per the question and information you gave me, that should be correct,
i can tell you for sure only if i have exact question, maybe screenshot...

anonymous · Answer

That's my work and the question @hartnn

anonymous · Answer

@hartnn is this correct?

hartnn · Answer

yes, your work seems to be correct.

anonymous · Answer

Okay thanks! And just one more question: it talks about where does the formula for volume of a cylinder derive from.... I'm not even sure what that means.

anonymous · Answer

Never mind I think I got it :)

hartnn · Answer

good :)
welcome ^_^

anonymous · Answer

:)