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tino4ka555 [31]
2 years ago
13

Two balls are drawn without replacement from a box containing 2black and 3 red balls. What is the probability of drawing a black

ball on the second draw? Draw a tree diagram
Mathematics
1 answer:
lana [24]2 years ago
6 0

The probability of drawing a black ball on the second draw will be 3/5.

<h3>How to solve the probability?</h3>

From the information given, the total number of balls will be:

= 2 + 3 = 5 balls.

When the first ball is black and the second is red. This will be:

= 2/5 × 3/4

= 3/10

When the first is red and the second is black, this will be:

= 3/5 × 2/4

= 3/10

Therefore, the probability of drawing a black ball on the second draw will be:

= 3/10 + 3/10

= 3/5.

Learn more about probability on:

brainly.com/question/24756209

#SPJ1

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The equation is y=25x+300
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Write a parallel and perpendicular equation that passes through the point (6,-2)?
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Answer:

y=x-8 and y=-x+4

Step-by-step explanation:

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3 years ago
3.50 over(divided by) X equals 19.25<br>what is X?
castortr0y [4]

Answer:

x=0.18 repeating

Step-by-step explanation:

Solve the rational equation by combining expressions and isolating the variable x

4 0
2 years ago
Write the linear system:
notsponge [240]

Answer:

(See explanation for further details).

Step-by-step explanation:

C) The linear system is:

(-1)^{2} \cdot a + (-1)\cdot b + c = 5

c = - 4

(4)^{2}\cdot a + (4)\cdot b + c = 0

After some algebraic handling:

a - b + c = 5

c = -4

16\cdot a + 4\cdot b + c = 0

By direct substitution:

a - b - 4 = 5

16\cdot a + 4\cdot b - 4 = 0

a - b = 9

4\cdot a + b = 1

a = 9 + b

4\cdot (9+b)+b = 1

36 + 5\cdot b = 1

5\cdot b = -35

b = -7

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D) The parameter values are: a = 2, b = -7, c = -4

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8 0
3 years ago
A sporting goods store has added a section with trail foods and snacks. Raisins cost $5.00 per pound and peanuts cost $3.80 per
Alexxx [7]
HI THERE!
i can help you  :) 
------------------------------------------------------------------------------------------------------------------

 let the number of raisins (in pounds) be R and the number of peanuts  (in pounds be p. 

since the bag is 30 pounds, so R+P =30
the total cost of the bag is 30 pounds* 4.05 per pound = $121.50 .
now we can use the per-pound costs to write an equation  . . . 
5R+3.8P=121.5 

Now just solve that first equation. . (R+P=30)  for R. R= 30- P


now use that to substitute in the other equation 
5R+3.8P=121.5
5(30-p) + 3.8P=121.5
solve for p
150- 5P+ 3.8p = 121.5
150-1.2p=121.5
150-1.2p=121.5 
-1.2p=-28.5
P=23.75 

now use that to find r
R+p =30 
r+23.75=30
R=6.25 



(hope this helps sorry it took so long to type )
have a good day !


 





  
5 0
3 years ago
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