đây nè bạn

nữa nè

dcm cris gia

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   đố ai biết chữ khác trong những chữ trên

g;s;a;b;x;m đúng không ???????????????????????????????????

K MK NHA 

ừ chán thật 

ờ,Ngô Thị Thu Huyền,k cho mk ik

ko

ừ công nhận lun

1-6 mà cuộc sống vẫn nhàm chán

_"tớ" hết thiếu nhi r cậu ah, hic!_

tui cx z mak, 1/6 vẫn như ngày bth z thui

mk duyệt đi

mk ko có ai hẹn nè 

cùng chung cảnh ngộ rùi 

mk cx ở nhà nek!

nhỏ quá bn ơi

Bài 3:

a: nửa chu vi đáy là 19,2:2=9,6(m)

Chiều rộng đáy là \(9,6\cdot\dfrac{3}{8}=3.6\left(m\right)\)

Chiều dài đáy là:

9,6-3,6=6(m)

b: Thể tích của bể nước là:

\(3,6\cdot6\cdot1,5=5,4\cdot6=32,4\left(m^3\right)\)

c: Trong bể đó đã chứa:

\(3,6\cdot6\cdot0,7=15,12\left(m^3\right)\)

d: Thể tích phần còn lại chưa chứa nước là:

32,4-15,12=17,28m³=17280(lít)

Thời gian bể đầy là:

17280:640=27(giờ)

6