Mathematics, 29.11.2019 07:31 kingjaydee3415
Amixture of 5 pounds of fertilizer a, 13 pounds of fertilizer b, and 4 pounds of fertilizer c provides the optimal nutrients for a plant. commercial brand x contains equal parts of fertilizer b and fertilizer c. commercial brand y contains one part of fertilizer a and two parts of fertilizer b. commercial brand z contains two parts of fertilizer a, five parts of fertilizer b, and two parts of fertilizer c. how much of each fertilizer brand is needed to obtain the desired mixture?
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