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3 years ago

What % of 25 is 21?

Mathematics

2 answers:

Ierofanga [76]3 years ago

5 0

Answer: 84%

Step-by-step explanation:

1. Since 25 is the output value, we can assume that it is 100%

2. Now we out what we want to find with x

3. From step one, 25=100%

4. In the same line, x%=21

5. This gives us 2 equations:

100%=25(1)

x%=21(2)

6. By dividing equation 1 by equation 2 and taking note of the fact that both the left hand side of both equations have the same unit (%); we have (set up a proportion)

7. Then, take the reciprocal and solve. You should end up with x=84%

FinnZ [79.3K]3 years ago

3 0

Answer:

0.84

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