K
Khách

Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.

AH
Akai Haruma
Giáo viên
27 tháng 11 2023

Lời giải:

Anh Hai làm được số phần trăm sản phẩm là:

$130:1500\times 100=8,67$ (%)

27 tháng 11 2023

tim cai gi vay ban

27 tháng 11 2023

a) 40 - x = 54

x = 40 - 54

x = -14

b) 36 - x = -11

x = 36 - (-11)

x = 47

c) 2.x - 3 = -14

2x = -14 + 3

2x = -11

x = -11/2

27 tháng 11 2023

Mỗi đoạn bằng nhau dài: 4 : 5 = 0,8 (dm)

                       Đ/s: 0,8 dm

27 tháng 11 2023

a, 8\(⋮\) \(x\); 12 \(⋮\) \(x\)

⇒ \(x\) \(\in\) ƯC(8; 12)

    8 = 23; 12 = 22.3; ƯCLN(8; 12) = 22 = 4

\(x\) \(\in\) Ư(4) = {-4; - 2; -1; 1; 2; 4}

 

27 tháng 11 2023

b, 120⋮ \(x\); 90 \(⋮\) \(x\) 

⇒ \(x\) \(\in\) ƯC(120; 90)

120 =  23.3.5; 90 = 2.32.5; ƯCLN(120; 90) =  2.3.5 = 30

\(x\) \(\in\)Ư(30) = {-30; -15; -10; -6; - 5; -3; -2; -1; 1; 2; 3; 5;6; 10; 15; 30}

Vì - 5 < \(x\) < 10

Nên \(x\) \(\in\) {-3; -2; -1; 1; 2; 3; 5; 6}

 

 

27 tháng 11 2023

             2 tuần = 14 ngày

Trung bình mỗi ngày bán được số mét vải là:

            501,2 : 14 = 35,8 (m)

                              Đáp số: 35,8 m

27 tháng 11 2023

Giúp tớ với các bạn giỏi ơi

27 tháng 11 2023

Số chia hết cho 5 dư 1 là:

      ( 200 : 5 ) - 1* = 39 ( số)

1* : số cuối 201 chia cho 5 dư 1 nhưng số 201 lớn hơn 200 trong đề bài

Nhớ cho like

27 tháng 11 2023

Bổ sung thêm điều kiện của đề: Số cây trồng được của mỗi nhóm là như nhau

Giải

Gọi x (cây) là số cây trồng được của mỗi nhóm (x ∈ ℕ và 200 < x < 250)

Theo đề bài ta có x ∈ BC(8; 9; 12)

Ta có:

8 = 2³

9 = 3²

72 = 2³.3²

⇒ BCNN(8; 9; 72) = 2³.3² = 72

⇒ x ∈ BC(8; 9; 72) = B(72) = {0; 72; 144; 216; 288; ...}

Mà 200 < x < 250 nên x = 216

Vậy số cây trồng được của mỗi nhóm là 216 cây

27 tháng 11 2023

mình cần gấp

BÀI TẬP NÂNG CAO   Exercise 6 Put the verbs in brackets into the correct form. 1) How …………..….your trip to NhaTrang last week?                                   (be) 2)    They didn’t…………………..…. the trip because of  the snow.             (enjoy) 3) We are going ………………..…. a new house next year.                           (buy) 4) She usually...
Đọc tiếp

BÀI TẬP NÂNG CAO

 

Exercise 6 Put the verbs in brackets into the correct form.

1) How …………..….your trip to NhaTrang last week?                                   (be)

2)    They didn’t…………………..…. the trip because of  the snow.             (enjoy)

3) We are going ………………..…. a new house next year.                           (buy)

4) She usually ………………………. shopping at the weekends.                     (go)

5)    How …..……. she ……….……. To school every day?                               (go)

6)    My parents ……………………. me to the zoo yesterday.                         (take)

7)    My uncle and aunt  ………………..…. Doctors.                                          (be)

8)    I  ……………………. some food yesterday morning.                               (buy)

9)    Did you  ………………... soccer in the school playground last Saturday? (play)

 10) My two brothers and I don’t often  …………………. TV in the evening. (watch)

   Exercise 7 Underline one mistake in each sentence and correct it.

1.     Where did your family went last summer?

ð                                                                   .

2. How did they get on Ha Noi?

ð                                                                     .

3. I made a taxi to the train station yesterday.

ð                                                                   .

4. He lived with his parents in the south to Viet Nam.

ð                                                                   

5. My friend went to her hometown with underground.

ð                                                                   

    Exercise 8 Reorder the words to makesentences.

1. on/where/they/holiday/summer/were/their?

ð                                                                   

2. to/she/Thu Le/HoanKiem/Zoo/last/went/and/week./Lake/.

ð                                                                   

3. good/I/City/time/had/Hue/a/in/Imperial/.

ð                                                                   

4. we/our/back/hometown/coach/went/to/by/.

ð                                                                   

5. went/Hoa/uncle/to/by/see/plane/her/.

ð                                                                   

6. to/Nam/week,/by/countryside/last/went/the/underground/.

ð                                                                 .

7. From/my/I/to the/walked/house/railway station/yesterday/.

ð                                                                 

8. I/there/I/like/can/beautiful/views/by/enjoy/getting/train/because/the/.      

   Exercise 9 Use the words given to make sentences.

1. She/go/to/park/her/parents/yesterday/?

ð                                                                 .....

2. How often/she/go shopping/her mother/?

ð                                                                 

3. How/Nam/go/PhuQuoc Island/last/summer/?

ð                                                                 .

4. They/not/stay/home/last/night/.

ð                                                                 .

5. My parents/not/at/seaside/two days/ago/.

ð                                                                 .

6. You/take/boat trip/your family/last weekend?

ð                                                                 

7. I/like/listen/music/my/free/time.

ð                                                                 .

8. When/i/young/, /i/go/swimming/my friend/.

ð                                                                   

Exercise 10 Read and tick True (T) or False (F).

Tuan and his sister went to Ha Noi last weekend. First, they took a bus from their house to the railway station. Then, they went there by train. They like going by train because they enjoy the beautiful views on the way. They visited many places of interest such as HoanKiem Lake, Temple of Literature, West Lake, Ho Chi Minh  Mausoleum an One Pillar Pagoda. They didn’t have enough time to go to see Bat Trang Pottery Village. They had a wonderful time there. They went back to their hometown  by plane.

5
27 tháng 11 2023

đây là anh đúng k

 

28 tháng 11 2023

Exercise 6 Put the verbs in brackets into the correct form.

1) How ……was……..….your trip to NhaTrang last week?                                   (be)

2)    They didn’t………enjoy…………..…. the trip because of  the snow.             (enjoy)

3) We are going ……………to buy…..…. a new house next year.                           (buy)

4) She usually ………………goes………. shopping at the weekends.                     (go)

5)    How …..…does…. she ……go….……. To school every day?                               (go)

6)    My parents ………………took……. me to the zoo yesterday.                         (take)

7)    My uncle and aunt  ……are…………..…. Doctors.                                          (be)

8)    I  ……………bought………. some food yesterday morning.                               (buy)

9)    Did you  ………play………... soccer in the school playground last Saturday? (play)

 10) My two brothers and I don’t often  ………watch…………. TV in the evening. (watch)

   Exercise 7 Underline one mistake in each sentence and correct it.

1.     Where did your family went last summer?

went => go

2. How did they get on Ha Noi?

ð                                                                     .on => to

3. I made a taxi to the train station yesterday.

ð                                                                   .made => took

4. He lived with his parents in the south to Viet Nam.

ð                                                                   to => of

5. My friend went to her hometown with underground.

ð                                                                   with => by