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Dominik [7]
3 years ago
7

25% of what number is 21?

Mathematics
2 answers:
BaLLatris [955]3 years ago
7 0
Let the unknown number be x.

25% of x is 21

25% * x = 21

0.25 * x = 21

0.25x = 21

0.25x/0.25 = 21/0.25

x = 84

Answer: The number is 84.
Tcecarenko [31]3 years ago
5 0
Hey there! :D

25% represents a quarter of a number. 

If 21 is a quarter of a number, multiply it by 4. 

21*4= 84

21 is 25% of 84. 

I hope this helps!
~kaikers
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