23 December, 04:38
I have 54 coins in my pocket; some of them are quarters and the rest are nickels. In total, the coins are worth $6.10. How many of each coin do I have?
23 December, 05:54
17 quarters, 37 nickels
We just have to set up a system of equations
quarters are x
and nickels are y
now we can get ready to substitute
substitute it in
0.25 (54-y) + 0.05y=6.10
plug it back in
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» I have 54 coins in my pocket; some of them are quarters and the rest are nickels. In total, the coins are worth $6.10. How many of each coin do I have?