phamthao3335 phamthao3335

18-12-2022
Mathematics

contestada

biết 1 tấn nước biển chứa 25 kg muối
1) giả sử x kg nước biển chứa y kg muối. hãy biểu diễn x theo y
2) hỏi 50gram nước biển chứa bao nhiêu gam muối

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