Question 1058811
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Ref. Question 1058808 Follow-up:

Determine number of glass marbles produced from 15 lbs. of material, allowing 5% for waste.  The marbles are 1.5 in. in diameter. 

Volume of sphere = 4/3 * pi * r^3. 

1.333 * 3.1416 * .625 * .625 * .625 = 1.022 cu. in. 

Not sure from this point. 


Additional info;  Glass weighs .0945 lbs. / cu. in.   My apology for the omission.
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The 95% remaining amount of the glass (after taking off 5% for waste) is

0.95*15 = 14.25 lbs.

It corresponds to the volume of glass {{{14.25/0.0945}}} = 150.79 cu. in.

The number of spherical glass marbles is {{{150.79/1.0022}}} = 150.46  --->  (round)  ---> 150.

<U>Answer</U>.  150 spherical glass marbles.
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