Question 357426
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Hi,
54 coins totaling $3.80 

Let x be the number of nickels, then the number of dimes would be (54-x)
5x + 10(54-x)= 380
5x + 540 - 10x =380
540 - 380 = 5x
160= 5x
32 = x
We have 32 nickels 
Checking the answer
5*32 + 10*22 = 160 + 220 = 380cents = $3.80