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Emilio has 6 more nickels than dimes, and the total value of his coins is $2.10. How many nickels does he have? Let n represent the number of nickels

0.10n + 0.05n + 6 = 2.10


0.10n + 0.05(n + 6) = 2.10


0.10(n + 6) + 0.05n = 2.10


0.10(n 6) + 0.05n = 2.10

Verified Answer :

One nickel is equivalent to $0.05 and one dime is equivalent to $0.10.Let d - number of dimes and n - number of nickels. It is given that Emilio has 6 more nickels than dimes, thus n = d + 6, and the total value is $2.10. 

Hence,

$2.10 = $0.05n + $0.10d$2.10 = $0.05n + $0.10(n - 6).


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