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fomenos
3 years ago
7

Can someone explain 3-10 for me I don't get it!!

Mathematics
1 answer:
kicyunya [14]3 years ago
8 0
This can get confusing. Sorry if it doesn’t make a lot of sense. I will explain #3

1) You first have to look at the equation. It says 100 acres to 140 acres. From that information you should know that the number increases, so the percent will be over 100.
2)to set the equation up you do
X
__ =
100
Since every percent is out of 100.
3) Now you have to put the numbers in the equation. Since the original number is 15, so you would put it on the bottom and 18 on top.
X 18
__ = __
100 15
Then you times across
15x=1800
To find x (the percent) you divide both sides by 15
15x 1800
__ = __
15 15
X=120%
It would be increased
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Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

In this question, the order in which the volunteers are chosen is not important, which means that the combinations formula is used to solve this question.

Combinations formula:

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C_{n,x} = \frac{n!}{x!(n-x)!}

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You and the 3 friends(4 people), from a set of 4. So

D = C_{4,4} = \frac{4!}{4!0!} = 1

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p = \frac{D}{T} = \frac{1}{4845}

\frac{1}{4845} probability that you and your 3 friends will be selected.

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3 years ago
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Step-by-step explanation:


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4 years ago
Read 2 more answers
How do I do these problems?
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For number 1) You need to get m alone, so you must add 4.4 to 2.6.
For number 2) Same thing as #1
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For number 5) You need to get t alone, so you must multiply both sides by 2.5
For number 6) Same as #5
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