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MAXImum [283]
3 years ago
12

How do you find a percentage of a number? (besides )

Mathematics
2 answers:
Evgen [1.6K]3 years ago
8 0
This is a fun one. 

So let me show you an example, 

say we ask the question, 8 is what percent of 32. We can throw these into an equation that looks lime this. X/100=Y/Z, X in this case is 32 because it is the full 100% and we want to find what percent Y (8) is of it. Basically solving for Z. 

So plugging in the numbers, 

32/100=8/Z cross multiply, 800=32z in this problem we get that 8 is 25% of 32. 

That value makes sense so it must be correct. Let me know if you're still confused. 
Vsevolod [243]3 years ago
6 0
In order to find a percentage, you divide the sample by the total amount.

For example: Tess has 3 cookies out of the total amount of 9. 3/9 = 33.3%
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Xelga [282]

Step-by-step explanation:

Let the height above which the ball is released be H

This problem can be tackled using geometric progression.

The nth term of a Geometric progression is given by the above, where n is the term index, a is the first term and the sum for such a progression up to the Nth term is

To find the total distance travel one has to sum over up to n=3. But there is little subtle point here. For the first bounce ( n=1 ), the ball has only travel H and not 2H. For subsequent bounces ( n=2,3,4,5...... ), the distance travel is 2×(3/4)n×H

a=2H..........r=3/4

However we have to subtract H because up to the first bounce, the ball only travel H instead of 2H

Therefore the total distance travel up to the Nth bounce is

For N=3 one obtains

D=3.625H

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2 years ago
I need help with this problem. Please!
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6 0
3 years ago
Answer please it’s a big exam
melomori [17]

Answer:

Solve for be is 56

Step-by-step explanation:

That the answer

4 0
2 years ago
Read 2 more answers
Please help ASAP thank youu!!
Gennadij [26K]

Answer:

1. (-5)

Step-by-step explanation:

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