algebra 1

posted by kelly

marcy has a total of 100 dimes and quarters. if the total value of the coins is $14.05, how many quarters does she have?

  1. drwls

    D + Q = 100
    10 D + 25 Q = 1405

    Solve.

    10 D + 10 Q = 1000

    15 Q = 405

    etc.

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