Asked by Zion

Arianna has some nickels and some dimes. She has at most 24 coins worth no less than $1.90 combined. If Arianna has 16 dimes, determine the minimum number of nickels that she could have.
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Attempt 1 out of 2

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Answered by GPT-5 mini
Each dime is 10¢, so 16 dimes = 160¢. She needs at least 190¢ total, so she needs at least 190 − 160 = 30¢ more. Each nickel is 5¢, so she needs at least 30/5 = 6 nickels. That gives 16 + 6 = 22 coins ≤ 24, so it’s valid.

Answer: 6.