Question

5/x=20/28

x là bn thế, giúp mk nha

Answer 1

5/x=20/28

5/x=5/7

suy ra x=7

Answer 2

trả lời:

x=7

~~~hok tốt~~~

Answer 3

x bằng 7

Answer 4

\(\frac{5}{x}=\frac{20}{28}\)

\(\frac{5}{7}=\frac{20}{28}\)

\(x=7\)

Answer 5

đáp án: x=7

Answer 6

\(\frac{5}{x}=\frac{20}{28}\)

\(\Leftrightarrow\frac{5}{x}=\frac{5}{7}\)

\(\Rightarrow x=7\)

hok tốt .

Answer 7

\(\frac{5}{x}\)= \(\frac{20}{28}\)

5 : x   =    \(\frac{20}{28}\)

    x    =  5 : \(\frac{20}{28}\)

    x     =   7

Answer 8

5 / x = 20 / 28 

<=> 5 : x  = 20/28

             x   = 5 : 20/28

               x = 7.