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Rico's collection of quaters and dimes contains $32.85. There are 171 coins in all How many quarters and how many dimes are in Rico's collection?

i solve these with 2 equation.
would they be:

q + d = 171
25q + 10d = 32.85

help me please.

  • algebra/math - ,

    The second equation should be
    25q + 10d = 3285, becasue it refers to the number of cents, not dollars

    If you substitute 171 - d for q in the second equation, you can solve for d.

  • algebra/math - ,

    105 quarters
    66 dimes

    is that right?

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