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26 tháng 6

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26 tháng 6

351:43=8 dư 7

\(\frac32x+\frac12=\frac52\)

\(\frac32x=\frac52-\frac12\)

\(\frac32x=2\)

\(x=2:\frac32\)

\(x=\frac43\)

Vậy x = \(\frac43\)

Ta có:

$$\frac{3}{2}x + \frac{1}{2} = \frac{5}{2}$$$$\frac{3}{2}x = \frac{5}{2} - \frac{1}{2}$$$$\frac{3}{2}x = \frac{4}{2}$$$$\frac{3}{2}x = 2$$$$x = 2 : \frac{3}{2}$$$$x = \frac{4}{3}$$

Vậy $x = \frac{4}{3}$.

26 tháng 6

Tốt tô chan được tác giả miêu tả là tinh nghịch vì cô bé rất hiếu động, tò mò, thích khám phá mọi thứ xung quanh, thường có những hành động khác với bạn bè như nói chuyện trong giờ học, mở đóng nắp bàn liên tục, đứng bên cửa sổ gọi người hát rong, qua đó cho thấy Tốt tô chan hồn nhiên, đáng yêu và có cá tính riêng.

26 tháng 6

Công thức: C = 2πr + h

Trong đó: 

  • r là bán kính đáy.
  • h là chiều cao của hình trụ.
  • π (pi) 3.14.
26 tháng 6

Chu vi đáy hình lăng trụ đứng là tổng độ dài các cạnh của một đáy, vì đáy của lăng trụ là một đa giác.
Nếu đáy là tam giác: P = a + b + c
Nếu đáy là hình chữ nhật: P = 2 x (dài + rộng)
Nếu đáy là hình vuông: P = 4 x cạnh
Ví dụ đáy tam giác có 3 cạnh 3 cm, 4 cm, 5 cm thì chu vi đáy là 3 + 4 + 5 = 12 cm.

25 tháng 6

1 từ trong tiếng anh có nhiều nghĩa nha bn tuỳ thuộc vào ngữ cảnh của nó :)

S
25 tháng 6

fan - quạt là danh từ còn ng hâm mộ là động từ

đã mua vật phẩm hồi sinh với giá 19 đô la

25 tháng 6

Olm chào em, cảm ơn đánh giá của em về chất lượng bài giảng của Olm, cảm ơn em đã đồng hành cùng Olm trên hành trình tri thức. Chúc em học tập hiệu quả và vui vẻ cùng Olm em nhé!

24 tháng 6

Giải

7kg gấp 1kg số lần là: 7 : 1 = 7 (lần)

Số lạc khô thu được là: 1/3 x 7 = 7/3 (kg)

Đáp số: Chọn C.7/3

24 tháng 6

Số ki - lô - gam lạc khô thu được khi phơi 7 kg lạc tươi là:

\(7\times\frac13=\frac73\) \(\left(\operatorname{kg}\right)\)

Vậy chọn đáp án \(C.\frac73\)

24 tháng 6

Giải :

5 cái áo gấp 1 cái áo số lần là:

5 : 1 = 5(lần)

May 5 cái áo cần: 5/4 x 5 = 25/4 (m)

Chọn: 25/4 mét

24 tháng 6

Số mét vải để may \(5\) cái áo là:

\(\frac54\times5=\frac{25}{4}\) \(\left(m\right)\)

Vậy để may \(5\) cái áo cần \(\frac{25}{4}\) mét vải.

Look! The bus _______.A. comes                     B. is coming                            C. came                      D. comingMy father usually _______ coffee in the morning.A. drinks                      B. drink                        C. is drinking               D. drankYesterday, they _______ to the cinema together.A. go                            B....
Đọc tiếp
  1. Look! The bus _______.
    A. comes                     B. is coming                            C. came                      D. coming
  2. My father usually _______ coffee in the morning.
    A. drinks                      B. drink                        C. is drinking               D. drank
  3. Yesterday, they _______ to the cinema together.
    A. go                            B. goes                        C. went                        D. are going
  4. Listen! Someone _______ the piano.
    A. plays                       B. is playing                C. played                     D. play
  5. I _______ a student ten years ago.
    A. am                           B. was                         C. were                        D. are
  6. Where _______ you live now?
    A. do                            B. does                        C. did                           D. are
  7. She _______ her homework at the moment.
    A. does                        B. do                            C. is doing                   D. did
  8. Last night, we _______ a terrible noise outside.
    A. hear                         B. hears                       C. heard                       D. are hearing
  9. The sun _______ in the East.
    A. rise                          B. rises                        C. is rising                   D. rose
  10. Look at them! They _______ photos.
    A. take                         B. takes                       C. are taking                D. took
  11. Why _______ you cry last night?
    A. do                            B. does                        C. did                           D. are
  12. Water _______ at 100 degrees Celsius.
    A. boils                        B. boil                          C. is boiling                             D. boiled
  13. Don't make noise! The baby _______.
    A. sleeps                     B. is sleeping              C. slept                        D. sleep
  14. Two years ago, he _______ English in London.
    A. studies                    B. study                       C. studied                    D. is studying
  15. Every Sunday, my mom _______ to the market.
    A. go                            B. goes                        C. is going                   D. went
  16. I _______ a letter to my friend right now.
    A. write                        B. am writing               C. wrote                       D. writes
  17. We _______ our grandparents last weekend.
    A. visit                         B. visited                     C. are visiting             D. visits
  18. He _______ soccer very well. He is a professional player.
    A. play                         B. plays                      C. is playing                            D. played
  19. Keep silent! The teacher _______.
    A. speaks                     B. speak                      C. is speaking              D. spoke
  20. They _______ buy that car yesterday because it was too expensive.
    A. don't                        B. doesn't                    C. didn't                       D. aren't
  21. Cats _______ mice.
    A. catch                       B. catches                   C. catching                              D. caught
  22. What _______ you doing at the moment?
    A. do                            B. does                        C. did                           D. are
  23. When I was young, I _______ to be a doctor.
    A. want                        B. wants                      C. wanted                    D. am wanting
  24. She _______ eat meat. She is a vegetarian.
    A. don't                        B. doesn't                    C. didn't                       D. isn't
  25. Hurry up! Everyone _______ for you.
    A. waits                       B. wait                         C. is waiting                D. waited
  26. I _______ my keys this morning. Now I can't find them.
    A. lose                         B. lost                          C. am losing                D. loses
  27. My brother _______ like science fiction movies.
    A. don't                        B. doesn't                    C. didn't                       D. isn't
  28. The earth _______ around the sun.
    A. go                            B. goes                        C. is going                   D. went
  29. _______ you watch the football match last night?
    A. Do                           B. does                        C. Did                          D. Are
  30. They _______ in the garden right now.
    A. work                        B. works                      C. are working             D. worked
  31. Shakespeare _______ many famous plays.
    A. write                        B. writes                      C. wrote                       D. is writing
  32. Rice _______ in warm climates.
    A. grow                        B. grows                      C. is growing               D. grew
  33. She _______ a beautiful dress today.
    A. wear                        B. wears                      C. is wearing               D. wore
  34. We _______ a new house last month.
    A. buy                          B. buys                        C. bought                     D. are buying
  35. _______ it rain a lot in summer?
    A. Do                           B. Does                        C. Did                          D. Is
  36. Look! The birds _______ in the sky.
    A. fly                            B. flies                         C. are flying                 D. flew
  37. I _______ see you at the party last Friday.
    A. don't                        B. doesn't                    C. didn't                       D. wasn't
  38. He always _______ up early.
    A. get                           B. gets                         C. is getting                 D. got
  39. Listen to those people! What language _______ they speaking?
    A. do                            B. does                        C. did                           D. are
  40. Christopher Columbus _______ America in 1492.
    A. discover                              B. discovers                 C. discovered              D. is discovering
  41. I usually _______ to bed before 10 PM.
    A. go                            B. goes                        C. am going                 D. went
  42. My sister _______ cooking dinner in the kitchen now.
    A. does                        B. is                                         C. did                           D. was
  43. They _______ very happy at the concert last night.
    A. are                           B. was                         C. were                        D. did
  44. Vegetarians _______ eat meat.
    A. don't                        B. doesn't                    C. didn't                       D. aren't
  45. The leaves _______ red and yellow in autumn.
    A. turn                         B. turns                        C. are turning              D. turned

Look! That man _______ to open your car door.
A. tries                         B. try                            C. is trying                   D. tried

1

1. Look! The bus _______.
A. comes B. is coming C. came D. coming
2. My father usually _______ coffee in the morning.
A. drinks B. drink C. is drinking D. drank
3. Yesterday, they _______ to the cinema together.
A. go B. goes C. went D. are going
4. Listen! Someone _______ the piano.
A. plays B. is playing C. played D. play
5. I _______ a student ten years ago.
A. am B. was C. were D. are
6. Where _______ you live now?
A. do B. does C. did D. are
7. She _______ her homework at the moment.
A. does B. do C. is doing D. did
8. Last night, we _______ a terrible noise outside.
A. hear B. hears C. heard D. are hearing
9. The sun _______ in the East.
A. rise B. rises C. is rising D. rose
10. Look at them! They _______ photos.
A. take B. takes C. are taking D. took
11. Why _______ you cry last night?
A. do B. does C. did D. are
12. Water _______ at 100 degrees Celsius.
A. boils B. boil C. is boiling D. boiled
13. Don't make noise! The baby _______.
A. sleeps B. is sleeping C. slept D. sleep
14. Two years ago, he _______ English in London.
A. studies B. study C. studied D. is studying
15. Every Sunday, my mom _______ to the market.
A. go B. goes C. is going D. went
16. I _______ a letter to my friend right now.
A. write B. am writing C. wrote D. writes
17. We _______ our grandparents last weekend.
A. visit B. visited C. are visiting D. visits
18. He _______ soccer very well. He is a professional player.
A. play B. plays C. is playing D. played
19. Keep silent! The teacher _______.
A. speaks B. speak C. is speaking D. spoke
20. They _______ buy that car yesterday because it was too expensive.
A. don't B. doesn't C. didn't D. aren't
21. Cats _______ mice.
A. catch B. catches C. catching D. caught
22. What _______ you doing at the moment?
A. do B. does C. did D. are
23. When I was young, I _______ to be a doctor.
A. want B. wants C. wanted D. am wanting
24. She _______ eat meat. She is a vegetarian.
A. don't B. doesn't C. didn't D. isn't
25. Hurry up! Everyone _______ for you.
A. waits B. wait C. is waiting D. waited
26. I _______ my keys this morning. Now I can't find them.
A. lose B. lost C. am losing D. loses
27. My brother _______ like science fiction movies.
A. don't B. doesn't C. didn't D. isn't
28. The earth _______ around the sun.
A. go B. goes C. is going D. went
29. _______ you watch the football match last night?
A. Do B. does C. Did D. Are
30. They _______ in the garden right now.
A. work B. works C. are working D. worked
31. Shakespeare _______ many famous plays.
A. write B. writes C. wrote D. is writing
32. Rice _______ in warm climates.
A. grow B. grows C. is growing D. grew
33. She _______ a beautiful dress today.
A. wear B. wears C. is wearing D. wore
34. We _______ a new house last month.
A. buy B. buys C. bought D. are buying
35. _______ it rain a lot in summer?
A. Do B. Does C. Did D. Is
36. Look! The birds _______ in the sky.
A. fly B. flies C. are flying D. flew
37. I _______ see you at the party last Friday.
A. don't B. doesn't C. didn't D. wasn't
38. He always _______ up early.
A. get B. gets C. is getting D. got
39. Listen to those people! What language _______ they speaking?
A. do B. does C. did D. are
40. Christopher Columbus _______ America in 1492.
A. discover B. discovers C. discovered D. is discovering
41. I usually _______ to bed before 10 PM.
A. go B. goes C. am going D. went
42. My sister _______ cooking dinner in the kitchen now.
A. does B. is C. did D. was
43. They _______ very happy at the concert last night.
A. are B. was C. were D. did
44. Vegetarians _______ eat meat.
A. don't B. doesn't C. didn't D. aren't
45. The leaves _______ red and yellow in autumn.
A. turn B. turns C. are turning D. turned
46. Look! That man _______ to open your car door.
A. tries B. try C. is trying D. tried