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Mathematics, 30.06.2019 08:00 itscheesycheedar

Ajar contains n nickels and d dimes. there is a total of 278 coins in the jar. the value of the coins is $18.00. how many nickels and how many dimes are in the jar?

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Ajar contains n nickels and d dimes. there is a total of 278 coins in the jar. the value of the coin...
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