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\(\frac{4}{5}\cdot\frac{3}{x}\cdot\frac{2}{11}=\frac{24}{165}\)
\(\frac{3}{x}\) \(=\frac{24}{165}:\frac{2}{11}:\frac{4}{5}\)
\(\frac{3}{x}\) \(=1\)
\(x\) \(=3\)
\(\frac{4}{3}:\frac{x}{5}=\frac{5}{13}\cdot\frac{4}{9}\)
\(\frac{4}{3}:\frac{x}{5}=\frac{20}{117}\)
\(\frac{x}{5}=\frac{4}{3}:\frac{20}{117}\)
\(\frac{x}{5}=\frac{39}{5}\)
\(x=39\)
a } 4 / 5 x 3 /y x 2 / 11 = 24 / 165
= 4/5 x 2/11 x 3/y =24/125
=8/55 x 3/y=24/125
= 24/125:8/55
=33/25
\(a.\frac{4}{5}\times\frac{3}{x}\times\frac{2}{11}=\frac{24}{165}\)
\(\frac{3}{x}=\frac{24}{165}:\frac{4}{5}:\frac{2}{11}\)
\(\frac{3}{x}=1\)
\(\Rightarrow x=3\)
\(b.\frac{4}{3}:\frac{x}{5}=\frac{5}{13}\times\frac{4}{9}\)
\(\frac{4}{3}\times\frac{5}{x}=\frac{20}{117}\)
\(\frac{5}{x}=\frac{20}{117}:\frac{4}{3}\)
\(\frac{5}{x}=\frac{5}{39}\)
\(\Rightarrow x=39\)
Đúng nha
a. 207 chia hết cho 9
b. 315,345, 375 chia hết cho 3
c. 7830 chia hết cho 5 và 9
hok tốt
\(\frac{4}{5}\)x\(\frac{3}{x}\)x\(\frac{2}{11}=\frac{24}{165}\)
\(\Rightarrow\frac{4}{5}\)x\(\frac{3}{x}\)x\(\frac{2}{11}=\frac{8}{55}\)
\(\Rightarrow\frac{4}{5}\)x\(\frac{3}{x}\)= \(\frac{8}{55}\):\(\frac{2}{11}\)
\(\Rightarrow\frac{4}{5}\)x\(\frac{3}{x}\)=\(\frac{4}{5}\)
\(\Rightarrow\frac{3}{x}\)=\(\frac{4}{5}:\frac{4}{5}\)
\(\Rightarrow\frac{3}{x}=1\)
\(\Rightarrow\frac{3}{x}=\frac{3}{3}\)
\(\Rightarrow x=3\)
A) 4/5 * 3/x * 2/11 = 24/165 B) 4/3 : x/5 = 5/13 * 4/9
3/x = 24/165 : 2/11 : 4/5 4/3 : x/5 = 20/117
x = 3 : 1 x/5 = 4/3 : 20/117
x = 3 x = 7,8 * 5
x = 39
a: =1098x37=40626
b: =261x168=43848
c: =456x11890=5421840
d: =55+327.6=382,6
a)1098x37=40626
b)261x168=43848
c)456x11890=5421840
d)55+327.6=382,6