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ak nhầm

chịu

help me chứ ko phải halp me nha bạn

khó

a/ 3 số nha

The school education system in Vietnam and England have some points in common. Still there are remarkable differences to noe. Regarding pre-school education, there is no differences. Both countries divide this level into two sub-levels with the age starting from 3 to 5. However, there is a big difference between the system of the two countries at primary level. While England divides this level into two sub-levels with three grades each, Vietnam makes it one level with five grades. With respect to secondary education, England have six grades compared with seven grades of that of Vietnam. And another remarkable difference is that the age of this level ranging from 11 to 16 for English students; whereas, the age for Vietnamese students is from 11 to 17. Nevertheless, after finishing the curriculum, students of the two countries all need to sit for the examination for the GCSE. In conclusion, though there are differences between the school education system in Vietnam and England, the knowledge of the students may remain the same.

cho hỏi bạn chép mạng phài ko

\(x\) - (10 - \(x\)) = \(x\) - 22

\(x\) - 10 + \(x\) = \(x\) - 22

2\(x\) - 10 = \(x\) - 22

2\(x\) - \(x\)  = -22 + 10

\(x\)         = - 12

Dạ,em cảm ơn cô ạ!

• Người trước Ngô Quyền chọn Cổ Loa làm kinh đô đó là: An Dương Vương
• Lý do là: Cổ Loa nằm vào vị trí đỉnh của tam giác châu thổ sông Hồng và là nơi giao lưu quan trọng của đường thủy và đường bộ. Từ đây có thể kiểm soát được cả vùng đồng bằng lẫn vùng sơn địa, dễ kiểm soát được đất nước.

Chúc bạn học tốt.

Đó là An Dương Vương

Vì Cổ Loa là mảnh đất hẹp , khí hậu thời tiết thuận lợi , trung tâm đất nước , lại là nơi giao lưu buôn bán với các nước khác nên hai triều vua này chọn Cổ Loa làm kinh đô

Ta lấy ( VẬN TỐC XUÔI DÒNG - VẬN TỐC NGƯỢC DÒNG) : 2