có mk nè 

kb nha 

tq là ai

fan mê phim TQ

1.refrigerator/next/closet/and/front/dishwasher

=> The refrigerator is next to the closet and in front of the dishwasher

2.Traveling/train/slower/but/interesting/traveling/plane

=> Traveling by train is slower but more interesting than traveling by plane

3.Miss. Trang/take care/sick children/same hospital/as/mother

=> Miss. Trang takes care of sick children in the same hospital as my mother

4. it/dificult/find/apartment/HCM city ?

=> Is it difficult to find an apartment in HCM City ?

5. Brazil /most succesful/soccer team/ world

=> Brazil is the most succesful soccer team in the world

6. Lessons this year/ long/ diffcult/ those / last year

=> Lessons this year is longer and more diffcult than those in last year

7. farmers / work hard/ morning / night

=> farmers work hard from morning till night

lop nao ma cha duoc

Học giỏi vậy em thi cấp quốc gia lun anh thì thành phố là tịt 

\(\frac{1}{2}.\left(x-\frac{2}{3}\right)-20\%.\left(3x-1,5\right)=0,4\)

\(\Rightarrow\frac{1}{2}.\left(x-\frac{2}{3}\right)-\frac{1}{5}.\left(3x-\frac{3}{2}\right)=\frac{2}{5}\)

\(\Rightarrow\frac{1}{2}.x-\frac{1}{3}-\frac{3}{5}x-\frac{3}{10}=\frac{2}{5}\)

\(\Rightarrow\left(\frac{1}{2}-\frac{3}{5}\right).x=\frac{2}{5}+\frac{3}{10}+\frac{1}{3}\)

\(\Rightarrow\frac{-1}{10}.x=\frac{31}{30}\)

\(\Rightarrow x=\frac{31}{30}:\frac{-1}{10}\)

\(\Rightarrow x=-\frac{31}{3}\)

P/s : Tính theo cách này đúng nhưng sao mk thử lại sai, có j sai trong câu trl mong cacau giúp đỡ :v

\(\frac{1}{2}\left[x-\frac{2}{3}\right]-20\%\left[3x-\frac{1}{5}\right]=0,4\)

\(\Rightarrow\frac{1}{2}x-\frac{1}{3}-\frac{20}{100}\left[3x-\frac{1}{5}\right]=0,4\)

\(\Rightarrow\frac{1}{2}x-\frac{1}{3}-\frac{1}{5}\left[3x-\frac{1}{5}\right]=0,4\)

\(\Rightarrow\frac{1}{2}x-\frac{1}{3}-\frac{3x}{5}-\frac{1}{25}=0,4\)

Làm nốt :v

\(\frac{3-x}{5-x}=\frac{-3}{5^2}\)

\(\Leftrightarrow\frac{3-x}{5-x}=\frac{-3}{25}\)

\(\Leftrightarrow25\left(x-3\right)=-3\left(5-x\right)\)

\(\Leftrightarrow25x-75=3x-15\)

\(\Leftrightarrow25x-3x=-15+75\)

\(\Leftrightarrow22x=50\)

\(\Leftrightarrow x=\frac{50}{22}=\frac{25}{11}\)

Bài 1: Tự làm nha (hơi rối, chắc sai đề ấy bn\)

Bài 2:

Chuyển sag bị động:

1)They have done these exercises

=>These exercises have been done.

2)Are they watching TV now?

=>Is TV being watched now?

3)I don't play volleyball everyday

=>Volleyball is played everyday.

4)Can you paint this picture?

=>Can this picture be painted?

5)They are going to build this school

=>This school is going to be bult.

SS nhầm đề nha đề đúng đây:

Bài 1 đó:\(K=\frac{5^2}{1.5}+\frac{5^2}{5.10}+...+\frac{5^2}{45.50}\)

\(1+\left(x-\frac{2}{3}\right)^3=\frac{37}{64}\)

\(\left(x-\frac{2}{3}\right)^3=\frac{37}{64}-1\)

\(\left(x-\frac{2}{3}\right)^3=\frac{-27}{64}\)

\(\left(x-\frac{2}{3}\right)^3=\left(\frac{-3}{4}\right)^3\)

\(\Rightarrow x-\frac{2}{3}=\frac{-3}{4}\)

\(\Rightarrow x=\frac{-3}{4}+\frac{2}{3}\)

\(\Rightarrow x=\frac{-1}{12}\)

\(1+\left(x-\frac{2}{3}\right)^3=\frac{37}{64}\)

\(\Rightarrow\left(x-\frac{2}{3}\right)^3=\frac{37}{64}-1\)

\(\Rightarrow\left(x-\frac{2}{3}\right)^3=\frac{-27}{64}\)

\(\Rightarrow\left(x-\frac{2}{3}\right)^3=\left(\frac{-3}{4}\right)^3\)

\(\Rightarrow x-\frac{2}{3}=\frac{-3}{4}\)

\(\Rightarrow x=\frac{-3}{4}+\frac{2}{3}\)

\(\Rightarrow x=\frac{-9}{12}+\frac{8}{12}\)

\(\Rightarrow\frac{-1}{12}\)

\(\left(x-3\right)^2+\frac{-9}{25}=\frac{2}{5}.\frac{8}{5}\)

\(\left(x-3\right)^2+\frac{-9}{25}=\frac{16}{25}\)

\(\left(x-3\right)^2=\frac{16}{25}+\frac{-9}{25}\)

\(\left(x-3\right)^2=\frac{7}{25}\)

\(\left(x-3\right)^2=\left(\frac{7}{5}\right)^2\)

\(\Rightarrow x-3=\frac{7}{5}\)

\(\Rightarrow x=\frac{7}{5}+3\)

\(\Rightarrow x=\frac{22}{5}\)

\(\left(x-3\right)^2+\left(\frac{-9}{25}\right)=\frac{2}{5}.\frac{8}{5}\)

\(\left(x-3\right)^2+\left(\frac{-9}{25}\right)=\frac{16}{25}\)

\(\left(x-3\right)^2=1=1^2\)

\(\Rightarrow x-3=1\)

\(\Rightarrow x=4\)

P/s: Hoq chắc :<