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Juan has 16 coins, all nickels and dimes. This collection of coins is worth $1. 15. How many nickels and dimes are there?
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Juan has 16 coins, all nickels and dimes. This collection of coins is worth $1. 15. How many nickels and dimes are there?

User Compholio
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1 Answer

3 votes
You would have 7 dimes and 9 nickels, this is because

5n +10d = 115 n + d = 16
n = 23 - 10d n = 16 - d

23 - 10d = 16 -d
7 = 9d
7/9 = d

Therefore there is 7 dimes and 9 nickels
User Aleksandr Zolotov
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