Mathematics, 26.10.2019 11:43, berlyntyler

An oil company operates two southern refineries. the alabama facility produces 500 barrels of high-grade oil and 200 barrels of medium-grade oil per day. the texas facility produces 600 barrels of high-grade and 400 barrels of medium-grade oil per day. by operating each facility for a certain number of days, the company produces exactly 15,000 barrels of high-grade and 8400 barrels of medium-grade oil. how many days must each facility operate to produce the desired result?

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An oil company operates two southern refineries. the alabama facility produces 500 barrels of high-g...