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xenn [34]
2 years ago
6

You have a drawer with five pairs of white socks, three pairs of black socks, and one pair of red socks. You choose one pair of

socks at random each morning, starting on Monday. You do not put the socks you choose back in the drawer. Find the probability of each event. 3. You select black socks on Monday and white socks on Tuesday.
Mathematics
1 answer:
Katena32 [7]2 years ago
7 0

Answer:

20.8%

Step-by-step explanation:

To find the final probability, two separate events must be done and the final propagation is the multiplication of these, like this:

First event:

Probability of black socks on Monday:

Total pair of socks: 1 + 3 + 5 = 9

Number of black socks on Monday: 3

Thus:

3/9 = 1/3

Second event:

Probability of white socks on Tuesday:

Total pair of socks: 8

Number of white socks on Tuesday: 5

Thus:

5/8

Final probability:

1/3 * 5/8 = 5/24

P = 0.208

So the probability would be 20.8%

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4 0
3 years ago
A private airplane leaves an airport and flies due east at 192 km/hr. Two hours later, a jet leaves the same airport and flies d
elixir [45]
The answer is 0.5 hours.

A velocity (v) of an object is a distance (d) divided by time (t):
v = d ÷ t                         ⇒                  t = d ÷ v

It is given:
v1 = 192 km/h
v2 = 960 km/h
t1 - t2 = 2h
We need to calculate t2.

Since they will travel the same distance before the jet overtakes the plane, we can say that d1 = d2 = d

Now, let's express t1 and t2:
t1 = d/192
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Therefore: d/192 - d/960 = 2
The least common denominator is 960, so:
5d/960 - d/960 = 2
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4d = 1920
d = 1920 ÷ 4 = 480 km

Now t2 = d/960 = 480/960 = 0.5 hours.
5 0
3 years ago
Scientists believe that there is an extremely massive black hole at the center of the Milky Way. How many times more massive tha
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I got B 
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spin [16.1K]
Mmmmmmmmmmmmmoooooooooooooooooooooooooooooooooooooooooooooooooosssssssssssssssssssssssssssseeeeeeeeeeeeeeeeeeeeeeeee
5 0
2 years ago
2x2 + 3x ANSWER TO THIS
igomit [66]

Answer:

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Step-by-step explanation:

Im guessing 2x2 is 2x^2

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x(2x+3)

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