Respostas

2013-03-21T18:10:39-03:00

x=0,3232...*(100)

100x=32,3232...

100x-x=32,3232...-0,3232

99x=32

x=32/99

 

y=1,555...*(10)

10y=15,555...

10y-y=15,555...-1,555...

9y=14

y=14/9

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