Chiếc xe Ford rời Hà Nội cho Nghệ An và chiếc xe Audi rời Nghệ An về Hà Nội cùng một lúc. Tỷ lệ tốc độ của họ (các xe Ford với chiếc xe Audi) là 4: 3. Ford giảm tốc độ của nó bằng 25% và chiếc xe Audi tăng tốc độ của nó bằng 25% sau khi họ đã đi qua nhau.
Khi chiếc xe Ford đạt Nghệ An, chiếc xe Audi vẫn còn 20 km đi từ Hà Nội. Khoảng cách giữa Hà Nội và Nghệ An là ...... km.
Chiếc xe Ford rời từ Hà Nội về Nghệ An và chiếc xe Audi rời khỏi Nghệ An tới Hà Nội cùng một lúc. Tỷ lệ tốc độ của 2 xe (chiếc Ford trên chiếc Audi) là 4: 3. Sau khi 2 xe vượt qua nhau xe Ford giảm 25% vận tốc ban đầu và chiếc xe Audi tăng 25% vận tốc ban đầu .
Khi xe Ford đến Nghệ An, chiếc xe Audi vẫn cách Hà Nội 20km. Khoảng cách giữa Hà Nội và Nghệ An là ...... km.
The Ford car left Hanoi for Nghe An and the Audi car left Nghe An for Ha Noi at the same time. The ratio of their speeds (the Ford car to the Audi car) was 4 : 3. The Ford decreased its speed by 25% and the Audi car increased its speed by 25% after they had passed each other.
When the Ford car reached Nghe An, the Audi car was still 20km away from Hanoi. The distance between Hanoi and Nghe An is ...... km.
The Ford car left Hanoi for Nghe An and the Audi car left Nghe An for Ha Noi at the same time. The ratio of their speeds (the Ford car to the Audi car) was 4 : 3. The Ford decreased its speed by 25% and the Audi car increased its speed by 25% after they had passed each other.
When the Ford car reached Nghe An, the Audi car was still 20km away from Hanoi. The distance between Hanoi and Nghe An is ...... km.
The Ford car left Hanoi for Nghe An and the Audi car left Nghe An for Ha Noi at the same time. The ratio of their speeds (the Ford car to the Audi car) was 4 : 3. The Ford decreased its speed by 25% and the Audi car increased its speed by 25% after they had passed each other.
When the Ford car reached Nghe An, the Audi car was still 20km away from Hanoi. The distance between Hanoi and Nghe An is ...... km.
Nâng cao nhe:The Ford car left Hanoi for Nghe An and the Audi car left Nghe An for Ha Noi at the same time. The ratio of their speeds (the Ford car to the Audi car) was 4 : 3. The Ford decreased its speed by 25% and the Audi car increased its speed by 25% after they had passed each other.
When the Ford car reached Nghe An, the Audi car was still 20km away from Hanoi. The distance between Hanoi and Nghe An is ...... km.
The Ford car left Hanoi for Nghe An and the Audi car left Nghe An for Ha Noi at the same time. The ratio of their speeds (the Ford car to the Audi car) was 4 : 3. The Ford decreased its speed by 25% and the Audi car increased its speed by 25% after they had passed each other.
When the Ford car reached Nghe An, the Audi car was still 20km away from Hanoi. The distance between Hanoi and Nghe An is ...... km.
1.The Ford car left Hanoi for Nghe An and the Audi car left Nghe An for Hanoi at the same time. The ratio of their speeds (the Ford car to the Audi car) was 4:3. The Ford car decreased its speed by 25% and the Audi car increased its speed by 25% after they had passed each other. When the Ford car reached Nghe An, the Audi car was still 20 km away from Hanoi. The distance between Hanoi and Nghe An is .... km
2.The smallest value of A= \(\frac{x-y}{x^{4}+y^{4}+6}\) is.....
lúc 8 giờ sáng xe A rời khỏi thị trấn P và đi dọc theo một đường cao tốc. Sau một thời gian đi xe B rời đi.Thị trấn P và đường cao tốc. Hai chiếc xe gặp nhau lúc 9 giờ sáng. Nếu tỉ lệ giữa tốc độ của A và B là 4:5 thì B rời khỏi thị trấn P lúc mấy giờ ?
