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Anonymous
3/10
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9 out of 30 = 30%
9 is 30% of 30, because 9/30 = 0.3 and 0.3 written as a percentage is 30% .
% rate of 9/30:= 9/30 * 100%= 0.30 * 100%= 30%
% rate:= (9/30) x 100%= 0.30 x 100%= 30%
9/30 = 3/10 = 0.3 = 30%