Question

Se x = 0,333… e y = 2,525252…, qual o valor de x +2y ?

Answer 1

Boa noite.

x = 0,333... = 1/3

y = 2,525252...
100y = 252,525252...

100y - y = 252,525252... - 2,525252... = 250
99y = 250
y = 250/99

x + 2y = $\frac{1}{3}+ \frac{2*250}{99} = \frac{33}{99}+ \frac{500}{99}= \frac{533}{99}=5,383838...$

^^