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a: \(\dfrac{-4}{8}=\dfrac{x}{-10}=\dfrac{-7}{y}=\dfrac{z}{-24}\)
=>\(\dfrac{x}{-10}=\dfrac{-7}{y}=\dfrac{z}{-24}=\dfrac{-1}{2}\)
=>\(\left\{{}\begin{matrix}x=\left(-10\right)\cdot\dfrac{\left(-1\right)}{2}=5\\y=\dfrac{-7\cdot2}{-1}=14\\z=\dfrac{-24\cdot\left(-1\right)}{2}=\dfrac{24}{2}=12\end{matrix}\right.\)
b: \(\dfrac{-3}{6}=\dfrac{x}{-2}=\dfrac{-18}{y}=\dfrac{-z}{24}\)
=>\(\dfrac{x}{-2}=\dfrac{-18}{y}=\dfrac{z}{-24}=\dfrac{-1}{2}\)
=>\(\dfrac{x}{2}=\dfrac{18}{y}=\dfrac{z}{24}=\dfrac{1}{2}\)
=>\(x=2\cdot\dfrac{1}{2}=1;y=18\cdot\dfrac{2}{1}=36;z=\dfrac{24}{2}=12\)
\(\frac{-3}{6}=\frac{x}{-2}=\frac{-18}{y}=\frac{-z}{24}\)
Ta có :
\(\frac{x}{-2}=\frac{-3}{6}\Rightarrow x=\frac{-3.\left(-2\right)}{6}=1\)
\(\frac{-18}{y}=\frac{-3}{6}\Rightarrow y=\frac{-18.6}{-3}=36\)
\(\frac{-z}{24}=\frac{-3}{6}\Rightarrow\frac{-3.24}{6.-z}\Rightarrow z=\frac{-3.24}{-6}=12\)
\(\Leftrightarrow\dfrac{x}{-2}=\dfrac{1}{-2}=\dfrac{-18}{y}=\dfrac{z}{-24}\)
=>x=1; y=36; z=12
1)\(\dfrac{-3}{6}=\dfrac{x}{-2}=\dfrac{-18}{y}=\dfrac{-z}{24}\)
\(\Rightarrow x=-\dfrac{3}{6}\cdot\left(-2\right)=1\)
\(\Rightarrow y=-18:\dfrac{-3}{6}=36\)
\(\Rightarrow z=-\dfrac{3}{6}\cdot\left(-24\right)=12\)
câu cuối làm tương tự
Ta có :
\(\frac{x}{-2}=-\frac{3}{6}\Rightarrow x=\frac{-3.\left(-2\right)}{6}=1\)
\(\frac{-18}{y}=-\frac{3}{6}\Rightarrow y=\frac{-18.6}{-3}=36\)
\(\frac{-z}{24}=-\frac{3}{6}\Rightarrow z=\frac{-3.24}{-6}=12\)
Vậy x = 1 ; y = 36 ; z = 12
Ta có : \(\frac{-3}{6}=\frac{x}{-2}\)=> \(\frac{1}{2}=\frac{x}{2}\) => x = 1
\(\frac{-3}{6}=\frac{-18}{y}\) => \(\frac{1}{2}=\frac{18}{y}\) => y = 36
\(\frac{-3}{6}=\frac{-z}{24}\) => \(\frac{1}{2}=\frac{z}{24}\) => z = 12
Vậy ......................