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huyencr0502
2 năm trước
Cho biết y tỷ lệ thuận với x theo hệ số tỷ lệ k. a)Hỏi x tỷ lệ thuận với y theo hệ số tỷ lệ nào? b) Khi x=3 và k =6 hãy tính giá trị của y? *HỨA VOTE 5 SAO, TLHN
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