Question

{x;5;7} d. p. {12;20;y}
x,y = ?

Answer 1

Răspuns:

x=3

y=28

Explicație pas cu pas:

$\frac{x}{12} =\frac{5}{20} =\frac{7}{y} \\x=\frac{12*5}{20}=\frac{60}{20} =3\\\\ y=\frac{20*7}{5}= \frac{140}{5} =28$