đây là toán rồi :)))
Giải:
a)Do nửa chu vi là 60m nên tổng của chiều dài và chiểu rộng là 60 / 2 = 30(m).
Mà chiều dài gấp 3 lần chiều rộng nên chiều rộng + chiều dài = chiều rộng + 3 x chiều rộng = 4 x chiều rộng, suy ra chiều rộng = 30 / 4 = 7,5(m), chiều dài = 3 x 7,5 = 23,5(m).
Vậy diện tích phần đất để xây nhà là 23,5 * 7,5 = 176,25(m).
Do người ta sử dụng 45% mành đất để xây nhà nên diện tích phần đất để xây nhà là 176,25 * 45% = 79,3125(m²).
b) Do diện tích phần đất để xây nhà chiếm 45% tồng diện tích nên diện tích vường hoa bằng với 1 - 45% = 55%(tổng diện tích) của cả mảnh đất.
Đáp số: a)79,3125m²   b)55%

Are you going to order?

Pho tastes and smell wonderful

Ex2

1 C

2 D

3 A

4 B

Ex3

1 Tam was a beautiful and gentle girl

2 Cam and her mother are very cruel

3 They forced Tam to do a lot of housework

4 A fairy helped Tam see the king

Minh would like to visit many places in the world

Minh would like to visit many places in the world

Tham khảo:

There is a football match between Arsenal and Liverpool.

There is a football match between Arsenal and Liverpool

1. will the sun set

2. will get

3. Are you going to take

4. will go

5. is going to buy

6. is going to snow

7. will you become

8. will bring

9. won't play

10. am going to get

11. will win

cíu mình với!!!!

1 Can you learn the lesson from this story
2 She is reading an interesting story in her room now
3 Does your brother think the fox is stupid
4 What kinds of stories does your mother like to read in her free time
5 Long time ago, there was a beautiful princess who lived in a big castle
6 Fairy tales are interesting because they often give us a lot of surprises

1 Can you learn the lesson from this story?

2 She is reading an interesting story in her room now

3 Does your brother think fox is stupid?

4 What kinds of stories does your mother like reading in her free time?

5 Long time ago, there was a beautiful princess who lived in a big castle

6 Fairy tales are interesting because they often give us a lot of surprises

1 My favorite story is Snow White and the Seven Dwarfs
2 She thinks the characters are sometimes honest, sometimes greedy
3 The hungry fox was standing on the ground
4 An Tiem's family exchanged the watermelons for food and drink
5 In the end, the prince and the princess got married, and they lived happily ever after

1. Dwarf => Dwarfs

2. character => characters

3. was stand => is standing

4. exchange => exchanges

5. lives => lived