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sarah has dimes and nickels which total $1.65. the number of nickels she has is 3 less than the number of dimes. how many of each does she have?

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Let n = # of nickels and d = # of dimes

d = n + 3

5n + 10d = 165

5n + 10(n+3) = 165

Solve for n then d.

12

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