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17 tháng 9 2021
b: Ta có: \(47\dfrac{1}{9}:\left(-\dfrac{5}{2}\right)-27\dfrac{1}{9}:\left(-\dfrac{5}{2}\right)\)
\(=\left(47+\dfrac{1}{9}\right)\cdot\dfrac{-2}{5}-\left(27+\dfrac{1}{9}\right)\cdot\dfrac{-2}{5}\)
\(=20\cdot\dfrac{-2}{5}\)
=-8
17 tháng 3 2022
1C 2A 3D 4B
What about helping me with my HW?
I haven't met her for 3 days
Have you ever read that book yet?
The USA had colour TV in 1953
The Eiffel Tower is the most famous building in Paris
Ngoc has never been to HCM city before
1D 2D 3B 4C
HT
17 tháng 3 2022
Bài 5: 1.C
2.A
3.D
4.B
Bài 6: 1.What about helping me with my homework?
2. I haven't met her for three days
Bài 7: 1. Have you ever read that book yet?
2. The USA had colour TV in 1953
3. The Eiffel Tower is the most famous building in Paris
4.Ngoc has never been to Ho Chi Minh City before
Bài 8: 1.D
2.D
3.B
4.C
TG
5
DT
Đỗ Thanh Hải
CTVVIP
4 tháng 6 2021
I
1 works - will pass
2 had - would buy
3 come - will phone
4 will feel - don't give
5 closed
6 goes - will be
7 will know - don't reveal
8 have
9 won
10 will stop
II
1 if I wanted to dance
2 when I had come
3 if John had arrived
4 where Maria parked her car
5 If I had watched the latest film
6 if she could help me
7 they had cleaned the windows
8 he hadn't had time to do his homework
9 her mother would be 50 years old
10 the boss had to sign the letter
TA
4 tháng 6 2021
Phần trên mình làm ở câu hỏi trước của bạn rồi nhớ.
III.
1. doesn't never drink -> never drinks
2. dressing -> dressed
3. Yes -> No
4. are -> will
5. nine -> ninth
6. Who -> How
7. tooth -> teeth
8. many -> much
9. do -> does
10. at -> in
V.
1. worse
2. as good as
3. wider
4. bigger
5. harder
6. tougher
7. fewer
8. narrower
9. the fastest
10. happier
D.
I.
1. A
2. B
3. D
4. D
5. B
II.
1. It is 3 years since we last went to Spain.
2. We have arrived in Budapest for 2 days.
3. This is the second time I have visited the Stone Forest.
4. Dung is keen on travelling.
5. If you don't turn off all the lights, you will pay more money.
22 tháng 2 2022
\(a)x=9/20-(-13/24)=>x=9/20+13/24=119/120\)
\(b)x=-2/5-13/15=-19/15\)
\(c)-x=-1/8+1/12=-1/24=>x=1/24\)
\(d)-4/9-x=5/36=>x=-4/9-5/36=-7/12\)
22 tháng 2 2022
a.\(\Leftrightarrow x=\dfrac{9}{20}+\dfrac{13}{24}\Leftrightarrow x=\dfrac{119}{120}\)
b.\(\Leftrightarrow x=-\dfrac{2}{5}-\dfrac{13}{15}\Leftrightarrow x=\dfrac{-19}{15}\)
c.\(\Leftrightarrow-x=-\dfrac{1}{8}+\dfrac{1}{12}\Leftrightarrow-x=-\dfrac{1}{24}\Leftrightarrow x=\dfrac{1}{24}\)
d.\(\Leftrightarrow-x=\dfrac{5}{36}+\dfrac{4}{9}\Leftrightarrow x=-\dfrac{7}{12}\)
\(e.\Leftrightarrow\dfrac{x}{4}=\dfrac{31}{140}+\dfrac{3}{7}-\dfrac{2}{5}\Leftrightarrow\dfrac{x}{4}=\dfrac{1}{4}\Leftrightarrow x=1\)
f.\(ĐK:x\ne0\)
\(\Leftrightarrow\dfrac{5}{x}=\dfrac{1}{2}-\dfrac{5}{12}+\dfrac{1}{8}\Leftrightarrow\dfrac{5}{x}=\dfrac{5}{24}\Leftrightarrow x=24\left(tm\right)\)
g.\(\Leftrightarrow x=\dfrac{11}{10}-\dfrac{1}{9}\Leftrightarrow x=\dfrac{89}{90}\)
h.\(\Leftrightarrow\dfrac{5-x}{12}=\dfrac{3}{8}-\dfrac{7}{24}\Leftrightarrow\dfrac{5-x}{12}=\dfrac{1}{12}\Leftrightarrow5-x=1\Leftrightarrow x=4\)
KY
21 tháng 2 2022
Yes
5 hours
Because some say that there is a lot of violence on TV today, the programs are terrible and people don't get any exercise because they only sit and watch TV
It brings news from around the world, help you learn many useful things, especially children
We learn about life in other countries
21 tháng 2 2022
1. Yes, it is.
2. Americans watch TV 5 hours a day.
3. Some say that there is a lot of violence on TV today, the programs are terrible and people don't get any exercise because they only sit and watch TV.
4. It brings news from around the world.
5. You can learn many new things, about life in other countries and it also helps people relax after a long day of hard work.