You can put this solution on YOUR website! how many different ways can u select one or more
coins if u have 2 nickels, 1 dime and 1 half dollar.
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You have 4 coins.
# of ways to select one or more
= total # of ways to select any number of coins - # of ways to select no coins
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= 2^4 - 1
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= 15 ways to select one or more.
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Cheers,
Stan H.
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