hospital

farmer

pretty

4G

??????????????????????????????????????????????????

hospital

farmer

pretty

4G

There are four people in my family:

My father is 52 years old.He is a doctor.He works in a hospital.My mother is 46 years old.She is a farmer.She works in a field.This is my older sister.She is very pretty.I am 6 years old.I am 6 years old.I am class 4G.

We are happy family!

\(x-\frac{7}{36}=-\frac{4}{7}-x\)

\(\Rightarrow x+x=-\frac{4}{7}+\frac{7}{36}\)

\(\Rightarrow2x=-\frac{95}{252}\)

\(\Rightarrow x=-\frac{95}{252}.\frac{1}{2}=-\frac{95}{504}\)

169 chia hết cho 3n + 1

=> 3n + 1 thuộc Ư(169) = {-169; -13; -1; 1; 13; 169}

=> 3n thuộc {-170; -14; -2; 0; 12; 168}

=> n thuộc {-170/3; -14/3; -2/3; 0; 4; 56}

Mà n là số nguyên

Vậy n thuộc {0; 4; 56}.

169 chia hết cho 3n+1

=>3n+1 E Ư(169)={-169;-13;-11;-1;1;11;13;169}

=>3n E {-170;-14;-12;-2;0;10;12;168}

=>n E {-170/3;-14/3;-4;-2/3;0;10/3;4;56}

mà n E Z=>n E {-4;0;4;56}

sr,ko có "11" đâu nhé

1/ do you usually
2/ I want to
3/ do you laugh
4/ is raining - don't want to go out
5/ does it cost
6/ is having

What do you usually do at the weekend

I'm tired now. I want to go home

What's funny? Why did you laugh

How much does it cost...

Where's Tom? He is having a shower

do you usually
i want to
do you laugh
is raining - don't want to go out
does it cost
is having

Nghe nhạc à ??? =)))

bam may tinh

hoac tính \(\Delta\)

roi ra x=-4+can(21)

x=-4-can(21)

Bai nay x thuoc rong

rỗng mk bn

tổng hai số đó là :

68 x 2 = 136

số bé là :

[ 136-8] : 2=64

số lớn là:

64 +  8 =72 

đáp số : số lớn :72

             số bé : 64

cảm ơn yến nhi

1. 810

2. 8/9

3. 9/21

4.4/3

5.a sai; b đúng; c đúng; d sai