There are 4 3-coin combinations if we can choose from nickels, dimes, quarters, and half-dollars
The number of coin combination
The coins to select from are nickels, dimes, quarters, and half-dollars.
So, we have:
Coins (n) = 4
The number of coin to select is:
Coin (r) = 3
The coin combination is then calculated using:
Combination = ⁴C₃
Apply the combination formula
Combination = 4
Hence, there are 4 3-coin combinations if we can choose from nickels, dimes, quarters, and half-dollars
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