document.write( "Question 791721: A cube with a side of 80cm contains 100 identical spheres inside.What is the volume of the vacant space? \n" ); document.write( "
Algebra.Com's Answer #479702 by Alan3354(69443)\"\" \"About 
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A cube with a side of 80cm contains 100 identical spheres inside.What is the volume of the vacant space?
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\n" ); document.write( "How big are the spheres?
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