SOLUTION: Let A = {1, 2, 3, 4, 5, 6, 7}. How many subsets does A have?

SOLUTION: Let A = {1, 2, 3, 4, 5, 6, 7}. How many subsets does A have?

Algebra.Com

Question 570672: Let A = {1, 2, 3, 4, 5, 6, 7}. How many subsets does A have?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Let A = {1, 2, 3, 4, 5, 6, 7}. How many subsets does A have?
----
Each element of "A" is either in or not in any given subset.
So there are 2^7 = 128 subsets
=====================================
Cheers,
Stan H.
=============
RELATED QUESTIONS
Let A= {1, 2, 3, 4, 5, 6, 7, 8, 9, 0}. How many subsets does set A... (answered by jim_thompson5910)

Let A = {1, 2, 3, 4, 5, 6, 7}. How many TWO element subsets does A... (answered by richard1234)

Let A = {1, 2, 3, 4, 5, 6}. (a) How many subsets of 4 elements does the set A have?... (answered by ikleyn)

How many 3-element subsets does the set {1, 2, 3, 4, 5, 6, 7}... (answered by ikleyn)

Let A = {1, 2, 3, 4, 5, 6, 7}. How many three element subsets of A contain the element... (answered by stanbon)

Must show all work! If A={1, 2, 3, 4, 5, 6, 7, 8} How many subsets does of A have? (answered by nalcob)

Let A= { 15,16,17,18,19,20} How many subsets does A have? How many proper subsets does A... (answered by MathLover1)

Let A = {5,6,7,8,9,11} How many subsets does A have? How many proper subsets does A... (answered by ikleyn)

How many subsets does the set {1, 2, 3} have? 6 7... (answered by Edwin McCravy)