Mathematics, 20.01.2020 03:31, ayowazzzgood

Ajar contains n nickels and d dimes. there are 21 coins in the jar, and the total value of the coins is $1.55. how many nickels and how many dimes are in the jar?

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Ajar contains n nickels and d dimes. there are 21 coins in the jar, and the total value of the coins...

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