IV. Đặt câu hỏi và viết câu trả lời theo các gợi ý
Ex: Thu/ class 6A / class 6B? // 6A
K
Khách
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Những câu hỏi liên quan
IM
7 tháng 10 2016
1. your house / big / small? // small
Is your school big or small ?
=> It is small
2. Phong's classroom / first floor / second floor? // first
Is Phong's classroom on the first floor or the second floor ?
=> It is on the first floor
3. Thu's school / in the city / country? // city
Is Thu's school in the city or in the country ?
=> It í in the city
4. Phong / grade 7 / grade 6? // grade 6
Is Phong in grade 7 or grade 6 ?
=> He is in grade 6
5. you / class 7B / class 7C? // class 7C
Are you in class 7B or class 7C ?
=> I am in class 7C
22 tháng 8 2018
1. Your house is big or small ?
My house is small
2. Phong's classroom is on the first door or second floor?
Phong's classroom is on the first door
3. Thu's school is in the city or in the countryside?
Thu's school is in the city
4.Your class is 7B or class 7C?
My class is 7C
k mình nha
Chúc bạn học tốt
H
5 tháng 2 2021
Đặt câu hỏi với " How far " và trả lời theo gợi ý
1. school/ her house// 100 meters
How far is it from school to her house ?
=> It's about 100 meters .
2. post office/ movie theater// two kilometers
How far is it from post office to movie theater ?
=> It's about 2 kilometers.
3. your house/ Ben Thanh market// five kilometers
How far is it from your house to Ben Thanh Market ?
=> It's about five kilometers.
4. bookstore/ restaurant// 500 meters
How far is it from bookstore to restaurant ?
=> It's about 500 meters .
5. Lan's house/ zoo// three kilometers
How far is it from Lan's house to zoo ?
=> It's about three kilometers.
6. your school/ library// one kilometer
How far is it from your school to library ?
=> It's about one kilometers
2 tháng 12 2021
28. Where is the stadium?
→ The stadium is on Phan Dinh Phung Street.
29. Where is the market?
→ The market is opposite the movie theater.
30. Where are the students?
→ The students are in the library.
31. Where is the supermarket?
→ The supermarket is near the hospital.
32. Where is the drugstore?
→ The drugstore is on the left of my house.
2 tháng 12 2021
28.Where is the stadium?
The stadium is on Phan Dinh Phung Street
29.Where is the market?
The market is opposite movie theater.
30.Where are the students?
They are in the library.
31.Where is the supermarket?
The supermarket is near the hospital
32.Where is the drugstore?
The drugstore is on the left of my house.
F
1 tháng 7 2017
đặt 6a=x;2b=y;3c=z=>x+y+z=11
áp dụng bất đẳng thức Schwarts ta có:\(\frac{1}{x+1}+\frac{1}{y+1}+\frac{1}{z+1}\ge\frac{\left(1+1+1\right)^2}{x+y+z+3}=\frac{9}{14}\)
\(\Leftrightarrow\frac{28}{x+1}+\frac{28}{y+1}+\frac{28}{z+1}\ge\frac{28.9}{14}=18\)
\(\Leftrightarrow\frac{28}{x+1}-1+\frac{28}{y+1}-1+\frac{28}{z+1}-1\ge18-1-1-1=15\)
\(\Leftrightarrow\frac{27-x}{x+1}+\frac{27-y}{y+1}+\frac{27-z}{z+1}\ge15\)
\(\Leftrightarrow\frac{11-x+16}{x+1}+\frac{11-y+16}{y+1}+\frac{11-z+16}{z+1}\ge15\)
\(\Leftrightarrow\frac{y+z+16}{x+1}+\frac{z+x+16}{y+1}+\frac{x+y+16}{z+1}\ge15\)
\(\Leftrightarrow\frac{2b+3c+16}{6a+1}+\frac{6a+3c+16}{2b+1}+\frac{6a+2b+16}{3c+1}\ge15\)
=>đpcm
dấu "=" xảy ra khi \(a=\frac{11}{18};b=\frac{11}{6};c=\frac{11}{9}\)
2 tháng 12 2021
37. How far is it from Da Nang to Ho Chi Minh City?
It's about 900 kilometers.
38. How far is it from Ha noi to Ho Chi Minh City?
It's about 1700 kilometers.
39. How far is it from your school to the public?
It's about two kilometers.
40. How far is it from Hue to Da Nang?
It's about 100 kilometers.
2 tháng 12 2021
37.
→ How far is it from Da Nang to Ho Chi Minh City?
→ It's about 900 kilometers
38.
→ How far is it from Ha Noi to Ho Chi Minh City?
→ It's about 1700 kilometers
39.
→ How far is it from school to the public library?
→ It's about two kilometers
40.
→ How far is it from Hue to Da Nang?
→ It's about 100 kilometers
CHÚC BẠN HỌC TỐT VÀ ĐẠT ĐƯỢC KẾT QUẢ CAO! ♫
IV. Đặt câu hỏi và viết câu trả lời theo các gợi ý
Ex: Thu/ class 6A / class 6B? // 6A
=> Does Thu is in class 6a or class 6b?
She is in class 6a