Mathematics, 10.12.2021 07:30 andrew8228

Cho biết y tỉ lệ thuận với x theo hệ số tỉ lệ k và khi x=4 thì y=12 a) Viết công thức tính y theo x
b) Tính x khi y=9

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Cho biết y tỉ lệ thuận với x theo hệ số tỉ lệ k và khi x=4 thì y=12 a) Viết công thức tính y theo...

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Cho biết y tỉ lệ thuận với x theo hệ số tỉ lệ k và khi x=4 thì y=12 a) Viết công thức tính y theo x b) Tính x khi y=9

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Cho biết y tỉ lệ thuận với x theo hệ số tỉ lệ k và khi x=4 thì y=12 a) Viết công thức tính y theo x
b) Tính x khi y=9