Answers

2014-02-22T18:39:18+08:00
9/10=x/30
30 x 9=270 then divide it by 10..so the answer is 27.
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2014-02-24T19:53:17+08:00
9:10=__:30
9:10=27:30

watch the number 10 and the number 30 divide them and you get 3 after it multiply the number 9 and 3 then you get number 27.

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