Question

.Se
x = 0,555... e  y = 0,1555..., calcule o
valor de x



















 y:

Answer 1

$\boxed{x=0,5555...=\frac{5}{9}} \\ \\ \boxed{y=0,1555..=\frac{1,555...}{10}=\frac{1+\frac{5}{9}}{10}=\frac{14}{90}} \\ \\ \boxed{x.y=\frac{5}{9}.\frac{14}{90}=\frac{14}{162}=\frac{7}{81}}$