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3 years ago

How do I solve this

Mathematics

2 answers:

Elza [17]3 years ago

8 0

the picture is blurry

nordsb [41]3 years ago

6 0

The picture is SUPER blurry, please re-post or edit if you can.

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I need help with question because I not very good a math please help

Fittoniya [83]

Sorry I am not good at math either

5 0

3 years ago

Add 12 to me. Then add another 12. If you subtract 9 and then add 7, you get 24. What number am I?

tiny-mole [99]

Answer:

Step-by-step explanation:

x+12+12-9+7 = 24

x+22 = 24

x = 2

4 0

3 years ago

I need this ASAP PLZ

Rasek [7]

I and -2 is the solve for the equation

3 0

3 years ago

If 7x + 5 = -2, find the value of 8x

kolbaska11 [484]

Answer:

-8

Step-by-step explanation:

you add 5 to -7 to get -2

7 x -1 is -7

so x = -1

8 x -1 = -8

6 0

4 years ago

A bag contains 3 red balls and 1 blue ball. A second bag contains 1 red ball and 1 blue ball. A ball is randomly picked from eac

Firlakuza [10]

Answer:

"2.82" seems to be the correct solution.

Step-by-step explanation:

As we know,

A bag (Bag A) contains,

Red balls = 3

Blue ball = 1

A second bag (Bag B) contains,

Red balls = 1

Blue ball = 1

Now,

⇒ P(Bag A, red ball) = $P(A)\times P(r)\times P(r)$

On substituting the values, we get

⇒ = $\frac{1}{2}\times \frac{3}{4}\times \frac{2}{3}$

⇒ = $\frac{1}{4}$

Similarly,

Probability of second bag will be:

⇒ P(Bag B) = $\frac{1}{2}$

hence,

In the first bag (Bag A), the expected number of red balls will be:

⇒ $E(n)=\Sigma P(n)\times n$

On substituting the values, we get

⇒ $=3 (\frac{1}{4})+2(\frac{1}{8} )+4(\frac{1}{24} )+3(\frac{1}{12} )+3(\frac{4}{20} )+4(\frac{1}{20} )+2(\frac{3}{20} )+\frac{2}{20}$

⇒ $= \frac{169}{60}$

⇒ $=2.82$

7 0

3 years ago