Question

Alguém pode me ajudar? é pra amanhã please.​

Answer 1

Resposta:

Explicação passo a passo:

Resolvendo:

a)

$x=0,777...\\10x=7,777...\\0,777...=\frac{7}{9}$

b)

$x=0,2121...\\10x=2,12121...\\100x=21,2121...\\\\0,2121...=\frac{21}{99}$

c)

$x=1,333...\\10x=13,333...\\\\1,333...=\frac{12}{9}$

d)

$x=0,1515...\\10x=1,51515...\\100x=15,1515...\\\\0,1515...=\frac{15}{99}$

e)

$x=0,3636...\\10x=3,63636...\\100=36,3636...\\\\0,3636...=\frac{36}{99}$

f)

$x=1,1818...\\10x=11,81818...\\100x=118,1818...\\\\1,1818...=\frac{117}{99}$

Espero ter ajudado!

Desculpe qualquer erro.