princessbabyliv2003 princessbabyliv2003

06-03-2017
Mathematics

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Represent 0.8 without an overbar.

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LammettHash LammettHash

06-03-2017

If [tex]x=0.\overline8=0.888...[/tex], then [tex]10x=8.\overline8=8.888...[/tex]. So

[tex]10x-x=8.\overline8-0.\overline8[/tex]
[tex]9x=8[/tex]
[tex]x=\dfrac89[/tex]

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