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Little Billie breaks open his piggy bank and finds that he has 261 coins. There are 10 pennies, 1 nickel and the rest are all dimes and quarters. His net coinage is $39.40. How many dimes and quarters did he have?​

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DryMilk

Answer: 12 quarters, 4 dimes

I subtracted the amounts known, for example 10 pennies, and 1 nickle. Since I know that 4 quarters = 1 dollar, I was able to figure out that 12 quarters equals 39 dollars. The rest was simple. Each dime = 10 cents.

Explanation:

Cos Milky said it. Milky smart.

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