25-x phan 18=1phan2
tim x
Những câu hỏi liên quan
Tim so nguyen x , biet : 1 phan 6 = x phan 18 ; x phan 8 = -1 phan 4 ; 4 phan -5 = x phan 10 ; 11 phan 5 = -22 phan x ; x phan 8 = 8 phan x ; x phan -11 = -11 phan x
\(\frac{1}{6}=\frac{x}{18}\Rightarrow x=3\)
\(\frac{x}{8}=-\frac{1}{4}\Rightarrow x=-2\)
\(\frac{4}{-5}=\frac{x}{10}\Rightarrow x=-8\)
\(\frac{11}{5}=-\frac{22}{x}\Rightarrow x=-10\)
\(\frac{x}{8}=\frac{8}{x}\Rightarrow x^2=64\Rightarrow x=8\)
\(\frac{x}{-11}=-\frac{11}{x}\Rightarrow x^2=121\Rightarrow x=11\)
#H
x phan 4 bang 18 phan x +1
rut gon roi quy dong va phan so
34 phan 5i va 38 phan 95 msc
54 phan 36 va 26 phan 39 msc
42 phan 28 va 27 phan 45 msc
33 phan 25 va 25 phan 75 msc
21 phan 35 va 18 phan 24 msc
33 phan 77 va 25 phan 75
thế nào vậy Lê Trâm Anh?
ko chi thi thoi
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tim so thap phan x ma phan thap phan co mot chu so va : 0,46*18*10<x*60<1,42*10*6
vay x =............................................. vi .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
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9/25.x+3/5.(9/25+18)+9/25.x+18=x
Tìm x
giup em voi moi nguoi oi
tim so tu nhien x
1+2+3...+99+100+x=6050
3 nhan x tru 18 =x+20
x phan 4 = 14 phan x+1
2000-5 nhan[x-18]= 125 nhan 8
em cam on a
\(\frac{9}{25}x+\frac{3}{5}\left(\frac{9}{25}x+18\right)+\frac{9}{25}x+18=x\)
Ta có \(\frac{9}{25}x+\frac{3}{5}.\frac{9}{25}x+\frac{3}{5}.18+\frac{9}{25}x+18=x\)
=> \(\frac{9}{25}x\left(1+\frac{3}{5}+1\right)+18\left(\frac{3}{5}+1\right)=x\)
=> \(\frac{117}{125}x+28,8=x\)
=> \(x-\frac{117}{125}x=28,8\)
=> \(\frac{8}{125}x=28,8\)
=> x = 450
Vậy x = 450
\(\frac{9}{25}x+\frac{3}{5}.\frac{9}{25}x+\frac{3}{5}.18+\frac{9}{25}x+18=x\)
\(x\left(\frac{9}{25}+\frac{9}{25}+\frac{9}{25}\right).\frac{3}{5}+\frac{3}{5}.18+18=x\)
\(x.\frac{3}{5}\left(\frac{27}{25}+18\right)+18=x\)
\(x.\frac{3}{5}\left(\frac{27}{25}+\frac{450}{25}\right)+18=x\)
\(x.\frac{3}{5}.\frac{477}{25}+18=x\)
\(x.\frac{1431}{125}+\frac{2250}{125}=x\)
\(x.\frac{3681}{125}=x\)
vậy chac tui làm sai rồi
(x+1 phan 2)^2=16 phan 25
giai ho
\(\left(\frac{x+1}{2}\right)^2=\frac{16}{25}\)
\(\left(\frac{x+1}{2}\right)^2=\frac{4^2}{5^2}\)
\(\left(\frac{x+1}{2}\right)^2=\left(\frac{4}{5}\right)^2\)
\(\Rightarrow\frac{x+1}{2}=\frac{4}{5}\)
\(\Rightarrow\left(x+1\right).5=2.4\)
\(\Rightarrow\left(x+1\right).5=8\)
\(\Rightarrow x+1=\frac{8}{5}\)
\(\Rightarrow x=\frac{3}{5}\)
vay \(x=\frac{3}{5}\)
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Viet cac phan so sau thanh phan so thap phan co mau so la 100
6/25 , 500/1000 , 18/200 .
6/25=6x4/25x4=24/100
500/1000=500:10/1000:10=50/100
18/200=18:2/200:2=9/100
tick nha
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