a: =5*100=500

b: =2022(14-3-1)=20220

\(13\cdot15-196:14-16:8-2022^0\)

\(=13\cdot15-14^2:14-2+1\)

\(=195-14+1\)

\(=181+1\)

\(=182\)

\(13.15-196:14+16:8-2022^0\)

\(=195-14+2-1\)

\(=181+2-1\)

\(=183-1=182\)

13.15 -196:14+16 :8-2022⁰.

=13.15-196:14+16:8-1.

=195-14+3-1.

=181+3-1.

=184-1.

=183.

\(\left|x+\dfrac{4}{5}\right|=\dfrac{2022}{2023}\)

\(\Rightarrow x+\dfrac{4}{5}=\dfrac{2022}{2023}\) hoặc \(x+\dfrac{4}{5}=\dfrac{-2022}{2023}\)

\(\Rightarrow\left[{}\begin{matrix}x+\dfrac{4}{5}=\dfrac{2022}{2023}\\x+\dfrac{4}{5}=\dfrac{-2022}{2023}\end{matrix}\right.\)

\(\Rightarrow\left[{}\begin{matrix}x=\dfrac{2022}{2023}-\dfrac{4}{5}\\x=\dfrac{-2022}{2023}-\dfrac{4}{5}\end{matrix}\right.\)

\(\Rightarrow\left[{}\begin{matrix}x=\dfrac{10110}{10115}-\dfrac{8092}{10115}\\x=\dfrac{-10110}{10115}-\dfrac{8092}{10115}\end{matrix}\right.\)

\(\Rightarrow\left[{}\begin{matrix}x=\dfrac{2018}{10115}\\x=-1,799505685\end{matrix}\right.\)

mình đã làm r?

`| x + 4/5 | = 2022/2023`

`@ TH1`

` x + 4/5= 2022/2023`

`=> x= 2022/2023-4/5`

`=>x=2018/10115`

`@ TH2`

` x + 4/5=- 2022/2023`

`=>x=- 2022/2023-4/5`

`=>x=-1,799505685`

14/6/2022 là thứ 3

=>14/6/2023 là thứ 4

Từ 14/6/2022 đến 14/6/2023 có 365 ngày

Ta có: 365 : 7 = 52 (dư 1)

Vậy 14/6/2023 là ngày thứ tư