Question 1149518
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It is THE SAME as to ask: how many subsets, containing one or more items, can be formed from 10 items.


The answer is VERY WELL known.


The number of ALL subsets of the set containing  "n"  elements is {{{2^n}}}.


One of this sets is empty, which is not considered (not allowed) in this problem.


So, the final answer is  {{{2^10-1}}} = 1024 - 1 = 1023 subsets.
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&nbsp;&nbsp;&nbsp;&nbsp;- <A HREF=http://www.algebra.com/algebra/homework/word/misc/How-many-subsets-are-there-in-a-given-finite-set-of-n-elements.lesson>How many subsets are there in a given finite set of n elements?</A>

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