Question

Câu 1  Tim số nguyên x, biet rằng

\(4\frac{1}{3}.\left(\frac{1}{6}-\frac{1}{2}\right)\le\times\le\frac{2}{3}.\left(\frac{1}{2}-\frac{1}{2}-\frac{3}{4}\right)\)

Câu 2 : Tính

\(1\frac{13}{15}.0,75-\left(\frac{104}{195}+25\%\right).\frac{24}{47}-3\frac{12}{13}:3\)

Câu 3 ; Tìm x Biet

\(\left(\frac{1}{12}+3\frac{1}{6}-30,75\right).\times-8=\left(\frac{3}{5}+0,415+\frac{1}{200}\right):0,01\)

Câu 4 : So Sánh    \(A=\frac{10^8+2}{10^8-1}\);  

 

 

Answer 1

Câu 2 : 

\(1\frac{13}{15}.0,75-\left(\frac{104}{195}+25\%\right).\frac{24}{47}-3\frac{12}{13}:3\)

\(\frac{28}{15}.\frac{3}{4}-\left(\frac{104}{195}+\frac{25}{100}\right).\frac{24}{47}-\frac{51}{13}:3\)

\(\frac{28}{15}.\frac{3}{4}-\frac{47}{60}.\frac{24}{47}-\frac{51}{13}:3\)

\(\frac{7}{5}-\frac{2}{5}-\frac{51}{13}.\frac{1}{3}\)

\(\frac{7}{5}-\frac{2}{5}-\frac{17}{13}\)

\(-\frac{4}{13}\)

Answer 2

Câu 1:

\(-\frac{13}{9}\le x\le-\frac{1}{2}\)

\(x=-1\)

Answer 3

đố mày làm được mà còn cho bọn tao làm 

Answer 4

1

\(4\frac{1}{3}.\left(\frac{1}{6}-\frac{1}{2}\right)=4\frac{1}{3}.-\frac{1}{3}=-\frac{13}{9}=-1,444..\)

\(\frac{2}{3}.\left(\frac{1}{2}-\frac{1}{2}-\frac{3}{4}\right)=\frac{2}{3}.\left(-\frac{3}{4}\right)=-\frac{1}{2}=-0,5\)

Mà \(\times\)nguyên => x \(\in\){-1}

Answer 5

đứa nào thấy mình giỏi thì trarloiwf đi

Answer 6

câu 4 đề bài thiếu

Answer 7

\(\left(\frac{1}{12}+3\frac{1}{6}-30,75\right).\times-8=\left(\frac{3}{5}+0,415+\frac{1}{200}\right):0,01\)

\(\left(\frac{1}{12}+3\frac{1}{6}-30,75\right).\times-8=\frac{121}{200}:0,01\)

\(\left(\frac{1}{12}+3\frac{1}{6}-30,75\right).\times-8=60,5\)

\(\left(\frac{1}{12}+3\frac{1}{6}-30,75\right).\times=60,5+8\)

\(\left(\frac{1}{12}+3\frac{1}{6}-30,75\right).\times=68,5\)

\(x=68,5:\left(\frac{1}{12}+3\frac{1}{6}-30,75\right)\)

\(x=68,5:-27,5\)

\(x=-2,4\)

Answer 8

khong lam duoc thi thoi vo day noi ba náp ba spam