Hi,

.

V(L)/V(s) =  = 16 smaller spheres can be made from the larger sphere 

Answer by Alan3354(69443)   (Show Source): You can put this solution on YOUR website!
 The larger sphere is of radius 8cm and is a metal. It is melted down and made into spheres of radius 2 cm. Smaller spheres are of radius 2 cm. How many of the smaller spheres can be made from the larger sphere?

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You can calculate the 2 volumes and divide to get 64 2" spheres.



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Or, use the fact that volume is a function of the cube of the radius.

Vol = k*r^3 (k is a constant)

8 = 4*2 --> 4^3 = 64 2" spheres. 

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