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Mathematics, 06.10.2019 09:02 Maria3737

Aperson is ordered by doctor to take 22 units of vitamin a, 18 units of vitamin d, and 11 units of vitamin e each day. there are three brands of vitamin supplement available: brand x contains 2, 1, and 2 units, brand y contains 3, 2, and 2 units and brand z contains 4, 4, and 1 units of vitamin a, d, and e, respectively. how many pills of each brand will provide the required amounts of vitamin? pills of brand x, pills of brand y and pills of brand z.

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