\(\frac{6\frac{1}{4}}{x}=\frac{x}{1,96}\)
\(\Rightarrow x^2=6\frac{1}{4}.1,96\)
\(\Rightarrow x^2=\frac{25}{4}.\frac{49}{25}\)
\(\Rightarrow x^2=\frac{49}{4}\)
\(\Rightarrow x^2=\left(\frac{7}{2}\right)^2\)
\(\Rightarrow x=\frac{7}{2}\)
vậy \(x=\frac{7}{2}\)
Ta có : \(\frac{6\frac{1}{4}}{x}=\frac{x}{1,96}\)
\(\Rightarrow\frac{6,25}{x}=\frac{x}{1,96}\)
\(\Rightarrow\frac{6,25.1,96.x}{x.1,96}=\frac{x.x}{1,96.x}\)
\(\Rightarrow6,25.1,96.x=x.x\)
\(\Rightarrow12,25.x=x.x\)
Vì \(x=x\)nên để \(12,25.x=x.x\)thì \(12,25=x\)
Vậy \(x=12,25\)
ta có:\(\frac{6\frac{1}{4}}{x}=\frac{x}{1,96}\)
=>\(6\frac{1}{4}.1,96=x.x\)
=>6,25.1,96=2x
=>12,25=2x
=>x=12,25:2
Vậy x= 6,125
Ta có: \(\frac{6\frac{1}{4}}{x}=\frac{x}{1,96}\)
\(\Leftrightarrow6,25.1,96=x^2\)
\(\Leftrightarrow12,25=x^2\)
\(\Leftrightarrow\left(3,5\right)^2=x^2\)
\(\Leftrightarrow x=3,5\)
Vậy: \(x=3,5\)
\(\frac{6\frac{1}{4}}{x}=\frac{x}{1,96}\)
Ta có :
\(x\times x=6\frac{1}{4}\times1,96\)
\(x\times x=\frac{25}{4}\times1,96\)
\(\Rightarrow x^2=\frac{49}{4}\)
\(\Rightarrow x=\sqrt{\frac{49}{4}}\)
\(\Rightarrow x=\frac{7}{2}\)