nay ban k có hàm số làm sao chứng minh dc

40

45

42

12,34 là đúng

Da ghi ra phan tram dum e

Tổng là:

360+26=386

Đáp số:386

K mk nha

Chiều rộng hình chữ nhật là :

  1449 : 42 = 34,5 ( m )

Chu vi hình chữ nhật là :

42 + 34,5 x 2 = 153 ( m )

        Đáp số : 153 m .

coi x : x = X

X - 85 = 65

X = 65 + 85

X= 150

các bạn ko làm câu c à

1. .........is the most expensive city in the world? I think it is Tokyo
A. What B. Where C. When D. How
2. .............is your favourite football player? I don’t like football.
A. Where B. Who C. How often D. How long
3. My sister can’t swim.........she is afraid of water.
A. because B. and C. but D. so
4. My best friend likes going to the cinema......I like watching TV at home.
A. and B. but C. because D. or
5. They ................... students yesterday.
A. am B. is C. was D. were
6.They ............. doctors two years ago.
A. am B. is C. was D. were
7. They ............... farmers last month.
A. are B. is C. was D. were
8. We ....... nurses yesterday.
A. am B. is C. was D. were
9. The weather ........ cold yesterday.
A. am B. is C. was D. were
10. I .........a student last week.
A. aren’t B. isn’t C. wasn’t D. weren’t

7 x 7 + 7 x 6 + 9 =

= 49 + 42 +9

= 91 + 9

= 100

tk nhé

ai k mình mình k lại

bye bye