# algebra/math

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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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