a) \(\left(0,25x\right):3=\frac{5}{6}:0,125\)
\(\Leftrightarrow0,25x=\frac{20}{3}.3\)
\(\Leftrightarrow x=80\)
b) \(0,01:2,5=\left(0,75x\right):0,75\)
\(\Leftrightarrow x=\frac{1}{250}\)
a, \(\frac{0,25x}{3}=\frac{5}{6:0,125}\Leftrightarrow\frac{0,25x}{3}=\frac{5}{48}\Leftrightarrow12x=15\Leftrightarrow x=\frac{5}{4}\)
b, \(\frac{0,01}{2,5}=\frac{0,75x}{0,75}\Leftrightarrow\frac{3}{400}=\frac{15}{8}x\Leftrightarrow x=\frac{1}{250}\)
\(\left(0,25x\right):3=\frac{5}{6}:0,125\)
=> \(0,25x=\frac{3\cdot\frac{5}{6}}{0,125}=\frac{3\cdot\frac{5}{6}}{\frac{1}{8}}=\frac{5}{2}:\frac{1}{8}=\frac{5}{2}\cdot8=20\)
=> \(x=20:0,25=80\)
Vậy x = 80
b) \(0,01:2,5=\left(0,75x\right):0,75\)
=> \(0,75x=\frac{0,75\cdot0,01}{2,5}=\frac{\frac{3}{4}\cdot\frac{1}{100}}{\frac{5}{2}}=\frac{3}{400}:\frac{5}{2}=\frac{3}{400}\cdot\frac{2}{5}=\frac{3}{1000}\)
=> \(x=\frac{3}{1000}:0,75=\frac{3}{1000}:\frac{3}{4}=\frac{3}{1000}\cdot\frac{4}{3}=\frac{1}{250}\)
Vậy x = 1/250
a (0,25x) : 3 = 5/6 : 0,125 \(\Leftrightarrow0,25x=\frac{20}{3}\)\(.3\)
\(\Rightarrow x=20:0,25\)
\(\Rightarrow x=80\)
b 0,01:2,5 =(0,75x) : 0,75
\(\Leftrightarrow\frac{3}{400}\) \(=\frac{15}{8}x\)
\(\Leftrightarrow x=\frac{1}{250}\)
\(0,25x\div3=\frac{5}{6}\div0,125\)
\(\Leftrightarrow\frac{1}{4}x\div3=\frac{5}{6}\div\frac{1}{8}\)
\(\Leftrightarrow\frac{1}{12}x=\frac{20}{3}\)
\(\Leftrightarrow x=\frac{20}{3}\div\frac{1}{12}=80\)
\(0,01\div2,5=0,75x\div0,75\)
\(\Leftrightarrow\frac{1}{100}\div\frac{5}{2}=\frac{3}{4}x\div\frac{3}{4}\)
\(\Leftrightarrow\frac{1}{250}=x\)
