To feed 7 horses for 4 days, Mark needs 420 kg of grass. How many kilograms of grass does Mark need to feed 9 horses for 6 days?

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To feed 7 horses for 4 days, Mark needs 420 kg of grass. How many kilograms of grass does Mark need to feed 9 horses for 6 days?

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Thông Đạt 6 months 2021-08-26T19:07:39+00:00 1 Answers 0 views 0

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    2021-08-26T19:09:04+00:00

    2+2 = 4s44444444444rrrrrrr

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )