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Katyanochek1 [597]
4 years ago
12

Finding what percent one number is of another ?

Mathematics
1 answer:
Leto [7]4 years ago
8 0

Answer:

11)  67%;  12) 25%

Step-by-step explanation:

Problem 11:  Find the fraction representing 30 out of a total of 45, and then multiply the result by 100%:

30/45 = 2/3 = 0.67; then we see that 30 is 67% of 45.


Problem 12:  Same method:

16/64 = 1/4 = 0.25.  Mult. this by 100%:  16 is 25% of 64.

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Step-by-step explanation:

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<em>And Margin of error formula is given by ;</em>

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