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Not sure if this is right, but I tried writing all the possible ways and got this:

gg, gg, gb, gb, gb, gr, gr, bb, br, br, rr, bg, bg, bg, rb, rb

Each g represents a green marble, r for a red marble, and b for a blue marble

there are 2 green-reds (gr) and 18 possible marble color choices, which gives us 2/18 and when simplified is 1/9

could a mod take this down

I think this may be a joke but i wil ldo it nonetheless

I assume you are trying to find f

f/2 = 8

f = 16

31 rounds to 30, and 936 rounds to 940

940 + 30 = 970 (B)

The difference between 30 and 45 is 15

15/30 = 1/2, so the percent increase is 50%, or D

In total there are 5 + 3 + 2 = 10 marbles in total

The probability that the first one drawn out 5/10 = 1/2, and the chance that the second will be red is 2/9, because there is no replacement

1/2 x 2/9 = 1/9

The probability that the first one drawn out will be green and the second one is red is 1/9

nvm i found out how to do it

Ok Ginger, I get your logic.  Seems reasonable.

If the three people are all different, different people in the same seats,  then I think you would multiply this by 3! = 6

800*6=4800

Do you agree with that?

Thanks Ginger and Thanks Rom for confirming her answer.

I guess I have some homework to do.

Rom, how do you know that Ginger is correct?

Thanks Travisio,

The first one was answered by Heureka. 

Heueka answers are always very impressive.  I am really pleased that you have verbalized how much this one helped you.

Thanks Heureka :))

This question will lock again soon 

BUT

If anyone else want to add to this thread just send me (or another moderator) a message and we can open it for you.

Attempt TWO - I think it is correct now.  

A baseballgame ended in 4 - 3.        Lakers get 4 and Celtics get 3

a. How many different evolutions of the score are possible? (I don't know the exact translation but I mean like this: 1-0; 2-0; 3-0; 4-0; 4-1; 4-2; 4-3)

LLLLCCC

We have 7 scores. and I want to know how many places I can slot in 3 Celtic scores between the 4 Lakers ones. That is 7C3 = 35

or

We have 7 scores. and I want to know how many places I can slot in 4 Celtic scores between the 3 Lakers ones. That is 7C4 = 35

b. After the fifth inning of the same game the score was 2 - 2. How many different evolutions of the score are possible. 

LLCC   4C2=6      then    LLC     3C1=3

6*3=18

c. The basketbal final in 2010 between the Celtics and the Lakers was played with a best-of-seven system, where they play seven games to determine the winner. The Lakers eventually won the final with an endscore of 4 - 3. Calculate the amount of evolutions of the score for this best-of-seven.

LLLCCC   6C3 = 20     then  L   

20*1 = 20

That is a very good question.

It seems my logic is rubbish.

I did say at the very beginning that I was not sure if it was right.

I should have tested that for myself.  

It is excellent that you did not just take my word for it.

I will play around with it for a bit to see if I can work out why my logic is flawed.

Ok - that was not so hard. I can see why it is flawed.

Edit:   Continuation of sage.

I can see why it was wrong!

I have said all those star postions are different but they are not.  I think I can fix this. 

Wait here for the next installment!

Solve for x:
sqrt(x) + 2 = sqrt(x + 100)

Raise both sides to the power of 2:
(sqrt(x) + 2)^2 = x + 100

Subtract x + 100 from both sides:
-100 + (sqrt(x) + 2)^2 - x = 0

-100 + (sqrt(x) + 2)^2 - x = 4 sqrt(x) - 96:
4 sqrt(x) - 96 = 0

Add 96 to both sides:
4 sqrt(x) = 96

Divide both sides by 4:
sqrt(x) = 24

Raise both sides to the power of two:
 
 x = 576

I graphed the equations and found that the only value is x = 576

Also around 9 sextillion googols...

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I had this on Alcumus...I remember doing it!

Answer: 34

I graphed the equations \(2x+5y>10\) and \(3x+4y>12\), then just found the optimal point.

To find the optimal point, I graphed \(8x+13y=k\) and then found the point where that line first touched the region.

It was at (2.857, 0.857) to the nearest thousandth.

Then I did the math and got 34.

You are very welcome!

:P

I think you mean \(7 \frac{1}{5}\).

This equals 7.2,and 7.2 to the fifth power, or \(7.2^5\), equals 19349.17632.

You are very welcome!

:P

Not really the site to put this, or at least off-topic post...

Now, I'm not an expert, but from what I know, a bunch of students wanted more democratic reform in China. In April of 1989, protests started in Tiananmen square, which led to a small revolution. As May rolled around, over 1 million people joined (from what I can think of).

You are very welcome!

:P

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