Gọi số đó là x

Ta có: x.2=2.3

=>       x.2=6

=>       x   =6:2

=>       x   =3

Vậy số cần tìm là 3

k mik nha mọi người ơi

Vậy năm sau thư viện có số sách là: 6000+ ( 6000x 20%)=7200( quyển)

Sau hai năm thư viện có số sách là:: 7200 + ( 7200 x 20% ) = 8640 ( quyển)

Đáp số: 8640 quyển

Ta có: \(\left(x+3\right)\left(x-3\right)=x^2-9=16\)

\(x^2=25\)

\(x=5;x=-5\)

The Muong (1)...........................ethnic roots with the Vietnamese people and their language is classified in the Vietnamese-Muong language branch. the Muong live in (2).............................areas which have abundant land for (3)......................wet rice. in a Muong hamlet, stilt houses are located in the shade of big trees, huddle against the mountain and(4)......................... out on vast rice fields. A Muong house is designed to maximize convenient use and air ventilation to the warm humid mountain climate

The muong's (5)...................is special. men often wear a round neck shirt which opens in the frond and has two pockets. their pants have large trouser legs. the Muong women wear a long, black dress and a white or brown shirt with a line of buttons in the front and long sleeves. they wind or indigo headscarf(6)....................... their head

The Muong have (7)........................folk arts including folk songs and poems, sorcerer's worshiping songs, tales, and riddle songs the gong is(8)....................popular musical instrument(9)..........the flute. the(10) violin. the drum, and the panpipe

1 a have b share c divide d cut

2 a mountain b mount c mountainous d hill

3 a growing b harvesting c putting d raising

4 a watch b see c stare d look

5 a cloth b material c costume d costumes

6 a out b around c at d above

7 a diverse b diversity c variety d range

8 a most b the most c more d the more

9 a together b as well c along d along with

10 a two strings b two-string c two string d second-string

Sentence rewriting

1. No one has seen Hoa since her birthday -> The last time Hoa

2. It is said that the thief stole everything in the house -> Everything

3. She never seems to succeed though she works hard -> Hard

4. They leave me alone. I'm afraid of this -> I am

.5 Is it all right if I come to the club with you tonight? -> Would you mind

6. There is no need to book the tickets in advance (Bother) -> Don't

7. The garden is too small for us to build a swimming pool (room) -> There

8. Nam could do better work (capable) -> Nam

9. I don't feel like chatting online at present (prefer) -> I'd

10. She didn't want to get sunburnt, so she stayed at home (avoid) -> She stayed at home

The garden is too small for us to build a swimming pool. (ROOM)

A. There is no room in the garden for a swimming pool to be built.

B. There is no room in the garden for building a swimming pool.

C. There is any room in the garden for a swimming pool to be built.

D. There is no room in the garden for a swimming pool to build.

Sentence rewriting

1. It is not necessary for you to go to school tomorrow

-> You need ...

2. We haven't contacted each other for years (touch)

-> We ...

3. This is his first visit to Japan

-> He is ...

4. I don't think the television's likely to blow up at any minute (Likelihood)

-> ...

Help me. Có cấu trúc nào thì mọi người ghi ra giúp em với ạ!!