arms
arms
12-08-2015
Mathematics
contestada
negative 0.09 repeating as a fraction
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JaySL
JaySL
12-08-2015
We can use a clever trick to solve this problem.
Call the decimal x. We see that:
x=-.09999...
and that:
100x=-9.9999...
Subtracting the second equation from the first, we see that:
99x=-9.9
Dividing by 99, we see that x=-.1.
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