Question

TÌM Y  BIẾT

\(\frac{12-y}{y}=\frac{2}{3}:\frac{1}{2}\)

Answer 1

36/7 là kết qủa đúng

Answer 2

cai nay sao giai duoc

Answer 3

\(\frac{12-y}{y}=\frac{4}{3}\Rightarrow\frac{y=8}{y=3}\)\

Vậy...

Answer 4

=> \(\frac{12-y}{y}=\frac{4}{3}\) => \(\frac{12}{y}-1=\frac{4}{3}\) => \(\frac{12}{y}=\frac{4}{3}+1\) => \(\frac{12}{y}=\frac{7}{3}\) => y = 12 : \(\frac{7}{3}\) => y=\(\frac{36}{7}\)

Answer 5

\(\frac{12-y}{y}=\frac{2}{3}:\frac{1}{2}\)

\(\frac{12-y}{y}=\frac{2}{3}.\frac{2}{1}\)

\(\frac{12-y}{y}=\frac{4}{3}\)

\(\Rightarrow3\left(12-y\right)=4y\)

\(\Rightarrow36-3y=4y\)

\(\Rightarrow4y+3y=36\)

\(\Rightarrow7y=36\)

\(\Rightarrow y=\frac{36}{7}\)

Answer 6

\(\frac{12-y}{y}=\frac{2}{3}:\frac{1}{2}\)

\(\frac{12-y}{y}=\frac{2}{3}\times\frac{2}{1}\)

\(\frac{12-y}{y}=\frac{4}{3}\)

\(\Rightarrow\left(12-y\right)\times3=4\times y\)

\(\Rightarrow36-3y=4y\)

\(\Rightarrow4y+3y=36\)

\(\Rightarrow7y=36\)

\(\Rightarrow y=\frac{36}{7}\)

Answer 7

mấy bạn cho mình hỏi sao

\(\frac{3}{2}:\frac{1}{2}=\frac{4}{3}\) đáng lẽ phải là như zầy chớ  \(\frac{3}{2}x\frac{2}{1}=\frac{6}{2}=3\)

Answer 8

vo tran huyen tran hỏi sai kìa: 2/3 chứ ko phải 3/2