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Total value $16.00
You have the exact same amount of half dollars, quarters, dimes and nickels.
How many of each do you have?
Let x = number of each coin
.05x + .10x + .25x + .50x = 16.00
.90x = 16
x = 16/.9
x = 17.77, not an integer, something not right with this problem
If the total was $18, there would be 20 of each coin.