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Harrizon [31]
3 years ago
10

Một khu đất 20 ha người ta trồng hai loại cây ngô và khoai. Năng suất của ngô tính theo x ha được (5 –x/4) tấn trên 1ha và năng

suất của khoai tính theo y ha được (7-/4) tấn trên 1 ha. Xác định diện tích trồng từng loại cây để sản lượng thu được là lớn nhất.
Mathematics
1 answer:
AVprozaik [17]3 years ago
6 0
Please elaborate so i can help
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