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Let the number of 25-cent stamps be ( x ) and the number of 29-cent stamps be ( y ). We have two equations based on the problem: ( x + y = 28 ) (the total number of stamps) and ( 0.25x + 0.29y = 7.60 ) (the total cost of the stamps). Solving these equations simultaneously, we find that Tim bought 16 of the 25-cent stamps and 12 of the 29-cent stamps.

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2mo ago

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