Làm thử nào các bạn(mình thì chịu thôi):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.
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.
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.....
Bài 1: Read. Then answer the questions below.(2p)
The ancient town of Hoi An lies on the Thu Non river, 30 km south of Da Hang. It was formerly a major trading center in Southeast Asia between the 16th and 17th centuries. Hoi an is famous for it’s old temples, pagodas, small tile – roofed houses and narrow streets. All the houses were made of wood and their pillar we’re carved with ornamental design.
All visitors to Hoi an are commended a visit to the Assembly Hall of Cantonese Chinese Congregation. This house was built in 1855 and still keeps many precious objects that belonged to the Chinese community of Hoi an. Another attractive address to tourists is Tan Ky house, which was conducted nearly two centuries ago as house of a Vietnamese merchant. The house now looks almost exactly as it did in the early 19th century
In recent years, Hoi An has become a popular tourists destination in Vietnam. In 1999, it was certified by UNESCO as a World Culture Heritage Site.
1. Where is the ancient town of Hoi An situated ?
->________________________________________________________
2. What is Hoi An famous for?
->________________________________________________________
3. When was the Assembly Hall of Cantonese Chinese Congregation built ?
->________________________________________________________
4. The word ” famous” can be refered by _______
A. beautiful B. well-known C. unknown D. wonderful
5. Hoi An was declared by UNESCO as a World Cultural Heritage Site in the ____
the century.
A.18 B.19 C.20 D. 21
A person travel from A to B at a constant speed v = 4 km / h. After he travelling \(\frac{2}{3}\) of the distance, he speed up 25% velocities. It takes 28 minutes to go A to B. The length of AB is.....
Chọn đáp án .a) I tired my .... not to laugh , but i couldn't .
A good B well C best D better
b) Are you proud ...... your country and its tradition?
A about B on C of D for
2, She eats more chocolate than me
=> i ..........
3, Vinh keeps forgetting his homework
=> Vinh is
4, How long is it since you used the car ?
=> when .........
Let ABC be an isoceles triangle (AB = AC) and its area is 501cm2. BD is the internal bisector of the angle ABC (D ∈ AC), E is a point on the opposite ray of CA such that CE = CB. I is a point on BC such that CI = 1/2 BI. The line EI meets AB at K, BD meets KC at H. Find the area of the triangle AHC.
