\(\frac{x}{27}=\frac{-2}{3,6}\)

=> x = \(\frac{27.\left(-2\right)}{3,6}=-15\)

Bài làm:

\(\frac{x}{27}=\frac{-2}{3,6}\Leftrightarrow3,6x=-54\Rightarrow x=-15\)

Học tốt!!!!

\(\frac{x}{27}\)\(=\frac{-2}{3,6}\)

\(\Rightarrow x.3,6=2,7.\left(-2\right)\)

\(\Rightarrow x.3,6=-54\)

\(\Rightarrow x=-56:3,6\)

\(\Rightarrow x=-15\)

Vậy , x = - 15

\(\frac{x}{27}\)= \(\frac{-2}{3,6}\)

\(\Leftrightarrow\)\(x\cdot3,6=27\cdot-2\)

\(\Leftrightarrow\)\(x\cdot3,6=-54\)

\(\Leftrightarrow\)\(x=-\frac{54}{3,6}\)

\(\Rightarrow\)\(x=-15\)

a) \(\frac{x}{27}=\frac{-2}{3,6}\Leftrightarrow x=\frac{-2.27}{3,6}=-15\)

b) \(\frac{4\frac{1}{4}}{2\frac{7}{8}}=\frac{x}{1,61}\Leftrightarrow\frac{4,25}{2,875}=\frac{x}{1,61}\Leftrightarrow x=\frac{4,25.1,61}{2,875}=2,38\)

a) \(\frac{x}{27}=-\frac{2}{3,6}\Rightarrow x=\frac{-2.27}{3,6}=-15\)

b) \(\frac{4\frac{1}{4}}{2\frac{7}{8}}=\frac{x}{1,61}\Rightarrow\frac{\frac{17}{4}}{\frac{23}{8}}=\frac{x}{1,61}\Leftrightarrow\frac{17}{4}\cdot\frac{8}{23}=\frac{x}{1,61}\)

 \(\frac{34}{23}=\frac{x}{1,61}\Rightarrow x=\frac{1,61.34}{23}=2,38\)

a, ta có:27:3,6=7,5

=>-2x7,5=15

vậy x cần tìm là 15

b, -0,52:x=\(-\frac{4}{7}\)

\(\frac{-13}{25}\): x=\(\frac{-4}{7}\)

x=\(\frac{-13}{25}:\frac{-4}{7}\)

x=0,91

<=>x.27=-2.3,6=-7,2

<=>x=-4/15

nhớ tick nha

\(x=\frac{3,6.\left(-2\right)}{27}=-\frac{4}{15}\)

\(\frac{x}{27}=\frac{-2}{3,6}\)

\(\Leftrightarrow3,6x=-54\)

\(\Leftrightarrow x=-15\)

Vậy x=-15

\(x\cdot3,6=27\cdot\left(-2\right)\\ x\cdot3,6=-54\\ x=-15\)

Nhân chéo đó bạn !

\(\frac{x}{27}=\frac{-2}{3,6}\)

\(3,6\cdot x=\left(-2\right)\cdot27\)

\(3,6\cdot x=-54\)

\(x=-56\text{ : }\left(3,6\right)\)

\(x=-15\)

x/27=-2/36

=> 36x=(-2).27

=>   36x=-54

=>    x   = -1,5 nha bạn

ủng hộ nha mọi người