To find the percent that a number, x, is out of another number, y, divide x by y and multiply by 100. So (21/30)*100 = 70, which means that 21 is 70% of 30.
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21
21. (30 percent of 30.00 = 30 x 0.3 = 9. 30.00 - 9 = 21)
3/10 is 30% 21% is 21% 0.34 is 34%
30% is 0.30 so, 0.30 x 70 = 2100 move the decimal to the left 2 times and get 21 and 21 is your answer!
70