Question

-5/y = 20/28

Bn nào bt giúp mk với mk cầm gấp

Answer 1

\(-\frac{5}{y}=\frac{20}{28}\)

\(< =>-\frac{5}{y}=\frac{5}{7}\)

\(< =>5y=-35< =>y=-7\)

Answer 2

Tìm y

\(-\frac{5}{y}=\frac{20}{28}\)

\(\Rightarrow\left(-5\right).28=20y\)
\(20y=-140\)

\(y=\left(-140\right):20\)

\(y=-7\)

Vậy y = -7.

Answer 3

\(\frac{-5}{y}=\frac{20}{28}\) 

=> \(y=\frac{\left(-5\right).28}{20}\)

=> \(y=-7\)

Answer 4

Bg

\(\frac{-5}{y}=\frac{20}{28}\)

\(\frac{-5}{y}=\frac{5}{7}\)

\(\frac{-5}{y}=\frac{-5}{-7}\)

=> y = -7

Answer 5

=5x4=20

=>5x4/7x4=20/28

Answer 6

Ta có : 

\(-\frac{5}{y}=\frac{20}{28}\Leftrightarrow-140=20y\)

\(\Leftrightarrow y=-\frac{140}{20}=-7\)

Answer 7

-5/y = 20/28

=> -5.28= y.20

=>-140 = y.20

=> y = -140 : 20

=> y= -7

hoặc

-5/y = 20/28

=>-5/y= 5/7

=>y = -7

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