4 years ago

How is infinite .99999999999 equal 1? (explain)

Mathematics

2 answers:

Ivan4 years ago

7 0

The way I got taught was you have to round it up and that would equal ten but you take out the zero

Rzqust [24]4 years ago

4 0

$x=0.\overline{9}\\
10x=9.\overline{9}\\
10x-x=9.\overline{9}-0.\overline{9}\\
9x=9\\
x=1$

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