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=90
x
Therefore,
490=x
or
245=
x
so the answer is
2/45
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