1. A: 8, B: 0

Câu 2

A:3

B:0

Câu 3 tớ không biết 

( Mong bn thông cảm)

Câu hỏi

10m=160000

1m vải cần số tiền là:

80 000:5 = 16 000(đồng)

10m vải cần số tiền là:

16 000 x 10 = 160 000(đồng)

ĐS:.....

Em đăng đôi lúc đc đôi lúc ko

toàn not responding và màn hình trắng thui

chị có bị vậy ko

a: Xét ΔABM và ΔACM có

AB=AC
AM chung

BM=CM

Do đó: ΔABM=ΔACM

b: Xét ΔABC và ΔDCB có 

\(\widehat{ABC}=\widehat{DCB}\)

BC chung

\(\widehat{ACB}=\widehat{DBC}\)

Do đó: ΔABC=ΔDCB

1 How was the lost man found by the police?

2 It was declared that she had won the competition

3 Has the window of the laboratory been changed?

4 Peter asked Janet if he could borrow her typwriter

5 My grandmother told me to feed her dog while she was away

6 My younger sister told me to lend her some more money

7 If I were tall enough,I would join the basketball team

8 If we don't hurry up, we will be late for the exam

9 If he hadn't gone out late last night, he wouldn't have been punished

10 I wish the weather hadn't been bad yesterday

\(\Rightarrow\dfrac{2}{3}x-\dfrac{1}{2}x=-\dfrac{1}{3}+\dfrac{2}{5}\\ \Rightarrow\dfrac{1}{6}x=\dfrac{1}{15}\Rightarrow x=\dfrac{2}{5}\)

\(\dfrac{2}{3}x-\dfrac{2}{5}=\dfrac{1}{2}x-\dfrac{1}{3}\)

<=> \(\dfrac{2}{3}x-\dfrac{1}{2}x=\dfrac{2}{5}-\dfrac{1}{3}\)

<=> \(\dfrac{1}{6}x=\dfrac{1}{15}\)

<=> 15x = 6

<=> x = \(\dfrac{6}{15}\)