Question

Tìm x:

a, x/1,5 = 4/3

b, 2/9 = x/ -72

c, x : -3/8 = 1/3

 

Answer 1

\(\frac{x}{1,5}=\frac{4}{3}\Rightarrow x=\frac{4.1,5}{3}=2\)

\(\frac{2}{9}=\frac{x}{-72}\Rightarrow x=\frac{2.\left(-72\right)}{9}=-16\)

\(x:-\frac{3}{8}=\frac{1}{3}\)

\(x=\frac{1}{3}.\left(-\frac{3}{8}\right)\)

\(x=-\frac{1}{8}\)

Answer 2

tick cho mk nha:

a) \(\frac{x}{1,5}=\frac{4}{3}\)   \(\Rightarrow x=1,5\times4\div3\)  =2 .

b)  \(\frac{2}{9}=\frac{x}{-72}\)   \(\Rightarrow x=-72\times2\div9\)  = \(-16\)

c) \(x\div\frac{-3}{8}=\frac{1}{3}\)  \(\Rightarrow x=\frac{1}{3}\times\frac{-3}{8}\)   \(x=\frac{-1}{8}\)

chúc bn hc tốt nha!