giair hộ mik
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![](https://rs.olm.vn/images/avt/0.png?1311)
My mother's a professional clerk in Clingme company. She's quite strict, but sometimes humorous and kind. She's definitely the best cook in the family, and I ...( like hoặc love ) her.
![](https://rs.olm.vn/images/avt/0.png?1311)
prettier
older
more handsome
more beautiful
thinner
fatter
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x3 + 3x = 12.11
=> x(3+3) = 12.11
=> 6x = 12.11
=> 6x - 12.11 = 0
=> 6( x - 2.11) = 0
=> 6 (x- 22) = 0
=> x-22=0
=> x = 22
vậy x = 22
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![](https://rs.olm.vn/images/avt/0.png?1311)
36 x ( 10 + 1 )
= 36 x 11
= 396
36 x 10 + 36 x 1
= 360 + 36
= 396
Cách 1 :
36 x ( 10 + 1 )
= 36 x 11
= 396
Cách 2 :
36 x ( 10 + 1 )
= 36 x 10 + 36 x 1
= 360 + 36
= 396
![](https://rs.olm.vn/images/avt/0.png?1311)
Để \(b=\overline{x208y}⋮2;5\Rightarrow y=0\)
Ta có: \(b=\overline{x2080}\)
Để \(b⋮3\) thì \(\left(x+2+0+8+0\right)⋮3\Leftrightarrow\left(x+10\right)⋮3\Leftrightarrow x\in\left\{2;5;8\right\}\)
Vậy: ...
![](https://rs.olm.vn/images/avt/0.png?1311)
Gọi số hs là x(x∈N*)
Ta có \(x\in BC\left(5,7\right)=B\left(35\right)=\left\{0;35;70;...\right\}\)
Mà \(30< x< 40\Rightarrow x=35\)
Vậy có 35 hs
Trả lời hết cái em chụp luôn hả em?