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i am spending a summer camp at week

i don' joana because she isn't friendly

1. I am spending a week at a summer camp.

2. I don't Joana because she isn't friendly.

Chúc bạn học tốt!

1 . I am spending a week at a summer camp .

2 . I don't Joana because she isn't friendly .

P/s : Không nhận gạch đá !

3.1 ; 3.2  ; 3.3 ; 3.4  ;  3.5  ;  3.6   ;  3.7    ;   3.8   ;    3.9

cậu viết sai đầu bài rồi thế mà có hàng nghìn số thập phân

3,1;3,2;3,3;3,4;3,5;3,6;3,7;3,8;3,9;....

Ta có: \(\dfrac{2\sqrt{x}+3-x}{x-1}=1\)

\(\Leftrightarrow-x+2\sqrt{x}+3=x-1\)

\(\Leftrightarrow-x+2\sqrt{x}+3-x+1=0\)

\(\Leftrightarrow-2x+2\sqrt{x}+4=0\)

\(\Leftrightarrow-2\left(x-\sqrt{x}-2\right)=0\)

\(\Leftrightarrow\left(\sqrt{x}-2\right)\left(\sqrt{x}+1\right)=0\)

hay x=4

Đề là ri phải ko bn:\(\dfrac{2\sqrt{x+3}-x}{x-1}=1\)

viết thiếu tí

chố x là căn x

Lời giải:

$\frac{3}{8}+(x-\frac{5}{24}):\frac{1}{2}=1$

$(x-\frac{5}{24}):\frac{1}{2}=1-\frac{3}{8}=\frac{5}{8}$

$x-\frac{5}{24}=\frac{5}{8}\times \frac{1}{2}=\frac{5}{16}$

$x=\frac{5}{16}+\frac{5}{24}=\frac{25}{48}$

Co so met vuong la : 

       5,4 : ( 57,6 : 3,2 ) = 0,3 ( m2) 

                                  Dap so : 0,3m2 

minh doan the thoi chang biet dung khong 

\(\left|x+1\right|+\left|x-5\right|=3x+1\left(đk:x\ge-\dfrac{1}{3}\right)\)

\(\Leftrightarrow x+1+\left|x-5\right|=3x+1\)

\(\Leftrightarrow\left|x-5\right|=2x\)

\(\Leftrightarrow\left[{}\begin{matrix}x-5=2x\left(x\ge5\right)\\x-5=-2x\left(-\dfrac{1}{3}\le x< 5\right)\end{matrix}\right.\)

\(\Leftrightarrow\left[{}\begin{matrix}x=-5\left(ktm\right)\\x=\dfrac{5}{3}\left(tm\right)\end{matrix}\right.\)

\(\Rightarrow\left[{}\begin{matrix}-x-1+5-x=3x+1\left(x< -1\right)\\x+1+5-x=3x+1\left(-1\le x< 5\right)\\x+1+x-5=3x+1\left(x\ge5\right)\end{matrix}\right.\\ \Rightarrow\left[{}\begin{matrix}x=\dfrac{3}{5}\left(ktm\right)\\x=\dfrac{5}{3}\left(tm\right)\\x=-5\left(ktm\right)\end{matrix}\right.\Rightarrow x=\dfrac{5}{3}\)

\(1+1+1+1+1=1\times5=5\)

=5

hok tôt nhé

kb nha

bằng 5