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Sarah has a collection of nickels, dimes, and quarters worth $9.25. She has 10 more dimes than nickels and twice as many quarters as dimes. How many coins of each kind does she have?

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  1. nickels --- x
    dimes ---- x+10
    quarters --- 2(x+10) = 2x + 20

    now for the value of your coints

    5x + 10(x+10) + 25(2x + 20) = 925

    solve for x , easy to solve

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