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MAVERICK [17]
3 years ago
5

There are 12 e's among the 100 tiles in scrabble. what is the probability of selecting all 4 e's when selecting 4 tiles?

Mathematics
1 answer:
vekshin13 years ago
5 0
Using math and my logic
(12/100)(11/99)(10/98)(9/97)=3/23765 which is about 0.0126% which is very small
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PLEASE GIVE AN EXPLANATION WITH YOUR ANSWER! The table below shows the change in the value of shares over the last three years.
gulaghasi [49]

First, lets convert them into multipliers:

The multiplier for a:

                             25% increase = 1.25

                             40% decrease = 0.6

                             40% increase  = 1.4

Now to work out the overall percentage change, we just times all of the multipliers together, and convert it back to a percentage:

1.25 x 0.6 x 1.4 = 1.05    

So the overall multiplier is 1.05

And a multiplier of 1.05 = a <u>5% increase</u>.

That means that the percentage change is + 5%

_________________________________________

Answer:

The percentage change in shares from the start of 2013 to the end of 2015 is:

+ 5%

_______________________________________

Note: if you haven't been taught multipliers - then ask and I'll try my best to explain!

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Solve the equation by completing the square
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AVprozaik [17]
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