Quality dog food requires a necessary amount of protein to promote healthy functions.   The industry standard requires at least 25% protein in the food to be considered "high quality".    The local humane society had a large quantiy of two brands of dog food donated recently. Brand A dog food contains 27% protein and Brand B contains 21% protein. Each week the humane society need to create a 205 lb mixture of food to feed the shelter dogs. How much of each brand should they mix together to create a high-quality mixture consisting of 25% protein?

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