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Represent 0.8 without an overbar.

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asked Jul 12, 2018 10.7k views

1 vote

Represent 0.8 without an overbar.

Mathematics
middle-school

IsDotR asked

by IsDotR

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1 Answer

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If
$x=0.\overline8=0.888...$ , then
$10x=8.\overline8=8.888...$ . So

$10x-x=8.\overline8-0.\overline8$

9x=8

$x=\frac89$

Carlos Porta answered Jul 16, 2018

by Carlos Porta

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Represent 0.8 without an overbar.

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