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vredina [299]
3 years ago
6

Increase or decrease 32 pages to 28 Pages round to the nearest tenth of a percent

Mathematics
1 answer:
Amiraneli [1.4K]3 years ago
6 0
Hello! I would love to help!


Let's start by decreasing 32 pages to 28. How many pages does it take to get from 28 to 32? Let's subtract to find out!


32-28=4

Okay, now we know 28 pages is 4 less than 32.

Now, what percentage did it decrease by? Let's find out by dividing!

4/32=0.125

Let's make that decimal into a percentage by multiplying it by 100.

0.125*100=12.5


So, we now know the answer is...


decreased by 12.5%


Hope this helped! Comment if you have questions!
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Solution (1) using angles of sectors:

Area of A = pi r^2  x 90/360 = 4.9

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Check:  Area of A/B = 4.9/14.72 = 1/3 (as given)

Solution (2) using given info:

Area of B + Area of A = area of circle

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There is more solutions to this problem , like polar coordinate integration , and so on. for more just request. 



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