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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
TN
1
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.\(\Leftrightarrow\dfrac{5-x}{12}=\dfrac{3}{8}-\dfrac{7}{24}\Leftrightarrow\dfrac{5-x}{12}=\dfrac{1}{12}\Leftrightarrow5-x=1\Leftrightarrow x=4\)
28 tháng 2 2022
I.
1.B
2.A
3.D
4.C
II.
1.A
2.C
3.B
4.D
5.C
6.B
7.B
8.D
III.
1. feels
2. is playing
3. didn't ride
4. to eat
IV.
1.a
2.c
3.d
4.b
18 tháng 3 2022
1 D
1 are
2 bought
3 are watching
4 gave
5 will go
6 told
7 is weraing
8 watching
9 goes
10 will visit
1 D
2 B
3 A
4 D
1 B
2 D
3 B
4 C
1. Yes,it is.
2. They watch TV about 5 hours (35(hours Americans watch TV for a week):7)
3. Because they think 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. We learn many useful things.