Respuesta :

9 is 30% of 30

To find the how many percentage, we do:
9 ÷ 30 = 0.3
0.3 × 100 = 30%
We have an equation: ?/100= 9/30

Cross multiply:
30*?= 9*100
⇒ ?= 9*100/30= 30

30% of 30 is 9~
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