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yan [13]
3 years ago
12

Can someone help me on these?

Mathematics
2 answers:
never [62]3 years ago
5 0
11.
answer is -2 and 10

4 + (-6) = -2
4 + 6 = 10

12.

answer is 10 last choice
Naddik [55]3 years ago
3 0
For the first question, it's -2&8
For the second question, its 10

Please rate this brainliest.


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Ahat [919]

in short, we will start off by making the left-side of the dot and the recurring numbers a variable, say "x", then multiplying it by some power of 10 that moves the recurring numbers over to the left, let's do so

\bf x = 6.\overline{12}~\hspace{10em} \begin{array}{llll} 100\cdot x&=&612.\overline{12}\\\\ &&606+6.\overline{12}\\\\ &&606+x \end{array} \\\\\\ 100x=606+x\implies 99x=606\implies x = \cfrac{606}{99}\implies x = \cfrac{202}{33}\implies x = 6\frac{4}{33}

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