Ruff, Inc. makes dog food out of chicken and grain: Chicken has 10 grams of protein and 5 grams of fat per ounce, and grain has 2 grams of protein and 2 grams of fat per ounce. A bag of dog food must contain at least 210 grams of protein and at least 170 grams of fat. If chicken costs 11e per ounce and grain costs 1e per ounce, how many ounces of each should Ruff use in each bag of dog food in order to minimize cost? HINT [See Example 4.) (tf an answer does not exist, enter DNE.) gran chicken Need Help? yak!

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