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28 tháng 6 2021

48l = 48dm³ = 0,048m³ 


Chiều cao của lượng nước trong bể là:


   0,48 : (0,5 × 0,3) = 3,2 (m)


Chiều cao của bể là:  


   3,2 : 4/5 = 4 (m)  


           Đáp số: 4m

28 tháng 6 2021

Thể tích nước trong  thùng tôn hình hộp chữ nhật là: 30 x 15 x 8 = 3600 (cm3)

Thể tích nước và viên gạch trong thùng tôn hình hộp chữ nhật là: 30 x 15 x 11,5 = 5175 (cm3)

=> Thể tích viên gạch là: 5175 - 3600 = 1575 (cm3)

28 tháng 6 2021

ST1:168

ST2:280

tk nha

28 tháng 6 2021

Số x là :

448 : ( 3 + 5 ) x 3 = 168 

Số y là :

448 - 168 = 280

Đáp số : ............

28 tháng 6 2021

Giải :

1 + 2 + 3 + 4 + ... + 10 000

Tổng đại số trên có số số hạng là :

( 10 000 - 1 ) : 1 + 1 = 10 000 ( số hạng )

Giá trị của tổng đại số trên là :

( 10 000 + 1 ) x 10 000 : 2 = 50 005 000

Vậy 1 + 2 + 3 + 4 + ... + 10 000 = 50 005 000

~~Học tốt~~

28 tháng 6 2021

Có tất cả số số hạng là:

(10 000 - 1) : 1 + 1 = 10 000 (số hạng)

Tổng là:

(10 000 + 1) x 10 000 : 2 = 50 005 000

Đáp số: 50 005 000.

28 tháng 6 2021

Giải :

Nếu tăng chiều dài thêm 5m và giảm chiều rộng đi 5m thì diện tích giảm đi 225m2

Vậy chiều dài ban đầu là :

225 : 5 = 45 ( m)

Vậy chiều rộng ban đầu là :

45 : 3 = 15 (m)

Diện tích khu vườn ban dầu là :

45 x 15 = 675 (m2)

Đ /S :  ...

# Linh

28 tháng 6 2021

Chiều dài khu vườn hình chữ nhật là :

225 : 5 = 45 (m)

Chiều rộng của khu vườn hình chữ nhật là :

(45 + 5) : 2 = 25 (m)

Chiều dài khu vườn hình chữ nhật ban đầu là :

25 x 3 = 75 (m)

Diện tích khu vườn hình chữ nhật là :

75 x 25 = 1875 (m² )

28 tháng 6 2021

Trong câu: “Trời thu xanh thăm thẳm, nắng cuối thu lấp lánh, long lanh,  dát vàng trên những chiếc lá trải dài trên mặt đất.” có bao nhiêu từ láy? Kể ra ?

Trong câu có 3 từ láy , đó là  : thăm thẳm , lấp lánh , long lanh 

#hoctot

28 tháng 6 2021

Có 3 từ láy: Thăm thẳm, lấp lánh, long lanh.

John liked chocolates very much, but his mother never gave him any, because they were bad for his teeth, she thought. But John had a very nice grandfather. The old man loved his grandson very much, and sometimes he brought John chocolates when he came to visit him. Then his mother let him eat them, because she wanted to make the old man happy.One evening, a few days before John's eighth birthday, he was saying his prayers in his bedroom before he went to bed. “Please, God.”, he shouted,...
Đọc tiếp

John liked chocolates very much, but his mother never gave him any, because they were bad for his teeth, she thought. But John had a very nice grandfather. The old man loved his grandson very much, and sometimes he brought John chocolates when he came to visit him. Then his mother let him eat them, because she wanted to make the old man happy.

One evening, a few days before John's eighth birthday, he was saying his prayers in his bedroom before he went to bed. “Please, God.”, he shouted, “make them give me a big box of chocolates for my birthday on Saturday”. His mother was in the kitchen and she heard the small boy shouting and went into his bedroom quickly.

“Why are you shouting, John?” she asked her son, “God can hear you when you talk quietly.”

“I know”, answered the clever boy with a smile, “but Grandfather's in the next room, and he can't.”

Note: prayer: lời cầu nguyện shout: la, hét

1.Why did his grandfather give him chocolates?

a.Because John loved candy.                                      C.Because it was good for his health.

b.Because his grandfather loved candy.                     D.Because John was a good boy.

2.Why did his mother let John eat chocolates when he got from his grandfather?

a.To please the old man.                                             C.Because she didn't have to pay for it.

b.To make John happy.                                               D.Because John liked it a lot.

3.What did he pray to God before his eighth birthday?

a.He wanted his grandfather to give him chocolates.             C.He wished for some money to buy chocolates.

b.He asked for good luck.                                                      

D.He begged God to make him a big box of chocolates.

4.Why did he shout when he was praying?

a.Because his grandfather was deaf.                          C.So that God can hear it.

b.So that his mother could hear him.                          D.So that his grandfather could hear him.

John liked chocolates very much, but his mother never gave him any, because they were bad for his teeth, she thought. But John had a very nice grandfather. The old man loved his grandson very much, and sometimes he brought John chocolates when he came to visit him. Then his mother let him eat them, because she wanted to make the old man happy.

One evening, a few days before John's eighth birthday, he was saying his prayers in his bedroom before he went to bed. “Please, God.”, he shouted, “make them give me a big box of chocolates for my birthday on Saturday”. His mother was in the kitchen and she heard the small boy shouting and went into his bedroom quickly.

“Why are you shouting, John?” she asked her son, “God can hear you when you talk quietly.”

“I know”, answered the clever boy with a smile, “but Grandfather's in the next room, and he can't.”

Note: prayer: lời cầu nguyện shout: la, hét

1.Why did his grandfather give him chocolates?

a.Because John loved candy.                                      C.Because it was good for his health.

b.Because his grandfather loved candy.                     D.Because John was a good boy.

2.Why did his mother let John eat chocolates when he got from his grandfather?

a.To please the old man.                                             C.Because she didn't have to pay for it.

b.To make John happy.                                               D.Because John liked it a lot.

3.What did he pray to God before his eighth birthday?

a.He wanted his grandfather to give him chocolates.             C.He wished for some money to buy chocolates.

b.He asked for good luck.                                                      

D.He begged God to make him a big box of chocolates.

4.Why did he shout when he was praying?

a.Because his grandfather was deaf.                          C.So that God can hear it.

b.So that his mother could hear him.                          D.So that his grandfather could hear him.

1
28 tháng 6 2021

John d chocolates very much, but his mother never gave him any, because they were bad for his teeth, she thought. But John had a very nice grandfather. The old man loved his grandson very much, and sometimes he brought John chocolates when he came to visit him. Then his mother let him eat them, because she wanted to make the old man happy.

One evening, a few days before John's eighth birthday, he was saying his prayers in his bedroom before he went to bed. “Please, God.”, he shouted, “make them give me a big box of chocolates for my birthday on Saturday”. His mother was in the kitchen and she heard the small boy shouting and went into his bedroom quickly.

“Why are you shouting, John?” she asked her son, “God can hear you when you talk quietly.”

“I know”, answered the clever boy with a smile, “but Grandfather's in the next room, and he can't.”

Note: prayer: lời cầu nguyện shout: la, hét

1.Why did his grandfather give him chocolates?

a.Because John loved candy.                                      C.Because it was good for his health.

b.Because his grandfather loved candy.                     D.Because John was a good boy.

2.Why did his mother let John eat chocolates when he got from his grandfather?

a.To please the old man.                                             C.Because she didn't have to pay for it.

b.To make John happy.                                               D.Because John d it a lot.

3.What did he pray to God before his eighth birthday?

a.He wanted his grandfather to give him chocolates.             C.He wished for some money to buy chocolates.

b.He asked for good luck.                                                      

D.He begged God to make him a big box of chocolates.

4.Why did he shout when he was praying?

a.Because his grandfather was deaf.                          C.So that God can hear it.

b.So that his mother could hear him.                          D.So that his grandfather could hear him

: Điền thêm từ chỉ quan hệ vào chỗ trốnga)     Đêm đã khuya……………………….em vẫn chưa buồn ngủ.b)    Ba mẹ rầy la ………………………..em rất buồn.c)     Bạn Lan không đến đúng giờ…………………………chúng em sẽ đi trước.d)    Hôm nay, tổ Một Tực lớp……………………………..tổ Hai trực lớp ?e)     Em thích học môn toán…………………………..Mai thích học tiếng...
Đọc tiếp

: Điền thêm từ chỉ quan hệ vào chỗ trống

a)     Đêm đã khuya……………………….em vẫn chưa buồn ngủ.

b)    Ba mẹ rầy la ………………………..em rất buồn.

c)     Bạn Lan không đến đúng giờ…………………………chúng em sẽ đi trước.

d)    Hôm nay, tổ Một Tực lớp……………………………..tổ Hai trực lớp ?

e)     Em thích học môn toán…………………………..Mai thích học tiếng Việt.

f)      ………………………………..bé hát hay………………….bé ………………..múa giỏi nữa.

g)     …………………….Nam chủ quan…………………………..Bi kiểm tra của Nam bị điểm kém.

h)    …………………..nhà quá nghèo ………………………Thanh phải đi bán vé số giúp gia đình.

i)       …………………….Hải nhỏ nhất lớp……………………Hải luôn đứng đầu về việc học tập.

j)       ……………………………bạn Đức hát……………………..cả lớp lại vỗ tay rất to.

…………… Lan có hoàn cảnh gia đình khá giả ……………………… bạn ấy lúc nào cũng buồn

4
28 tháng 6 2021

a, nhưng

b, nên

c, nên

d, và

e, nhưng 

28 tháng 6 2021

: Điền thêm từ chỉ quan hệ vào chỗ trống

a)     Đêm đã khuya nhưng em vẫn chưa buồn ngủ.

b)    Ba mẹ rầy la nên em rất buồn.

c)     Bạn Lan không đến đúng giờ nên chúng em sẽ đi trước.

d)    Hôm nay, tổ Một Tực lớp hay tổ Hai trực lớp ?

e)     Em thích học môn toán còn Mai thích học tiếng Việt.

f)      Không những bé hát hay  bé còn múa giỏi nữa.

g)      Nam chủ quan nên bài kiểm tra của Nam bị điểm kém.

h)     nhà quá nghèo nên Thanh phải đi bán vé số giúp gia đình.

i)      Tuy Hải nhỏ nhất lớp nhưng Hải luôn đứng đầu về việc học tập.

j)       Hễ bạn Đức hát thì cả lớp lại vỗ tay rất to.

Tuy Lan có hoàn cảnh gia đình khá giả nhưng bạn ấy lúc nào cũng buồn

28 tháng 6 2021

bảng đâu bn

28 tháng 6 2021

a)    Quan hệ gia đình :............................................................................................

b)   Quan hệ thầy trò......................................................... ...............................

c)    Quan hệ bạn bè :............................................................................................

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