document.write( "Question 706651: how many cubes of side 5 cm would be needed to fill the space inside a hollow cube of side 20 cm? \n" ); document.write( "
Algebra.Com's Answer #435316 by jim_thompson5910(35256)\"\" \"About 
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Each smaller cube is 5^3 = 125 cubic cm\r
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\n" ); document.write( "\n" ); document.write( "The larger cube is 20^3 = 8000 cubic cm\r
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\n" ); document.write( "\n" ); document.write( "So you will need 8000/125 = 64 cubes total
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