Giải:

Vì thêm số 2 vào bên trái số bé thì được số mới mà tổng hai số đó là số có 3 chữ số nên số mới là số có ba chữ số và hơn số ban đầu là:

2 x 100 = 200

Theo bài ra ta có sơ đồ:

Theo sơ đồ ta có:

Số ban đầu là:

(620 - 200) : 2 = 210 (vô lí)

Không có số nào thỏa mãn đề bài.

1. no
2. learn in Ho Chi Minh City University of Medicine and Pharmacy
3. VN

hmmmmmmmmmmmmmmmmmmmmmmmmm

1. C. had studied 2. A. sitting 3. B. be solved 4. B. had he 5. B. being

6. He suggested that I take a break. 7. Despite the heavy rain, they still went camping. 8. The company is believed to be losing money. 9. If he had brought an umbrella, he wouldn't have got wet. 10. This is the house where I was born.

7÷140=1/20=0.05

7 : 140 = 0,05

0,05 = 5%

Giải:

Lớp đó có số bàn là:

38 : 2 = 19 (cái bàn)

Đáp số: 19 cái bàn.

🔥🔥🔥🔥19

I live at Vinh Phuc Ward, Phu Tho Province

She does her homework

I can see an easy English exercise.

1. I live in Hanoi. 2. She is a teacher. 3. I can see a beautiful garden.

1. It is located in Ha Noi, Viet Nam.

2. It was built in 1070 by King Ly Thanh Tong.

3. There are five courtyards.

4. The third courtyard has Khue Van Pavilion.

5. It is a symbol of Hà Nội and represents education, literature, and learning.

• Where is the Temple of Literature?
  It is located in Hà Nội, Việt Nam.
• When and by whom was it built?
  It was built in 1070 by Emperor Lý Thánh Tông.
• How many courtyards are there in the Temple of Literature?
  There are five courtyards.
• Which courtyard has Khue Van Pavilion?
  The third courtyard has Khue Van Pavilion.
• What is the Khue Van Pavilion symbol used for?
  It is a symbol of Hà Nội and represents education, literature, and Vietnamese culture.

`(2x+1)(x^2 -49)=0`

`(2x+1)(x^2 -7^2)=0`

`(2x+1)(x-7)(x+7)=0`

`2x+1=0` hoặc `x-7=0` hoặc `x+7=0`

`x= -1/2` hoặc `x=7` hoặc `x=-7`

Vậy `x in {-1/2 ;-7;7}`

(2x + 1)(x^2 - 49) = 0

2x + 1 = 0 hoặc x^2 - 49 = 0

2x + 1 = 0 suy ra 2x = 1 suy ra x = 1/2

x^2 - 49 = 0 suy ra x^2 = 49

suy ra x = -7 hoặc x = 7

Vậy x ∈ {-7; -1/2; 7}

mik xin trl như sau

ko đổi đc nhé bn

Olm chào em, sp không đổi đươc gp hay xu đâu, em nhé.