Question

0,12/3=0,21/x

 

Answer 1

\(\frac{0,12}{3}=\frac{0,21}{x}\)

\(\Leftrightarrow0,12.x=0,21.3\)

\(\Leftrightarrow0,12.x=0,63\)

\(\Leftrightarrow x=0,63:0,12\)

\(\Leftrightarrow x=5,25\)

Answer 2

Đáp án là : \(\frac{21}{4}\)

Answer 3

X=\(\frac{3\cdot0,21}{0,12}\)\(\Rightarrow\)X= \(\frac{21}{4}\)

Bạn k cho mik nhé!Thank!!!!

Answer 4

\(\frac{0,12}{3}=\frac{0,21}{x}\)

\(\Rightarrow0,12x=0,63\)

\(\Rightarrow x=0,63:0,12=\frac{21}{4}\)