Tymlily Tymlily

03-01-2018
Mathematics

contestada

How do you do 4/5x-.4 repeating?

Respuesta :

Jossilyn16 Jossilyn16

06-01-2018

We use the algebraic way for this:
0.0¯4=x we manipulate the equation by multiplying it by 10 and 100.
0.¯4=10x
4.¯4=100x
We subtract the second equation from the third equation to get:
4=90x
Therefore,
490=x or
245=x
so the answer is

2/45

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