Mathematics, 11.10.2019 02:30, genyjoannerubiera

Ngo has collection of dimes and quarters with a total value of $3.50. the number of dimes is 7 more than the number of quarters. how many of each coin does he have?

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Ngo has collection of dimes and quarters with a total value of $3.50. the number of dimes is 7 more...