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Fudgin [204]
3 years ago
13

Peter selects a sock from his drawer. The sock is black. There are 4 white socks, 7 blue socks, and 12 black socks left in the d

rawer. He selects a second sock from the drawer without looking . Is it likely Peter selects a sock of the same color?
Mathematics
1 answer:
max2010maxim [7]3 years ago
3 0

Answer:

5/12

7/12

125/36 = 3,47%

50/11 = 4,54%

Step-by-step explanation:

Probability a black sock is selected when a person chooses 1 sock = 5/12

Probability a white or brown sock is selected when a person chooses 1 sock =

7/12

Probability  a person chooses 3 socks and selects a white first, a black second, and a brown last if the socks are replace = (4/12 * 5/12 * 3/12)*100 =125/36 = 3,47%

Pobability  a person chooses 3 socks and selects a white first, a black second, and a brown last if the socks are NOT replace = (4/12 * 5/11 * 3/ 10)*100 = 50/11 = 4,54%

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Add 40 plus 32, it equals 72 because he wrote 40 popular songs and 32 songs.
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sergeinik [125]

Answer:

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Step-by-step explanation:

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3 0
3 years ago
42x + 12 * 18 = 468<br><br> What does x equal
3241004551 [841]
X equals 6

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mart [117]

Answer: \sum_{n=1}^{5}4^n=1364

Step-by-step explanation:

Since we have given that

\sum_{n=1}^{5}4^n

Now, we know the rule for summation , we'll apply this ,

\sum_{n=1}^{5}4^n\\=4^1+4^2+4^3+4^4+4^5\\

Now, it becomes geometric progression, so we us the formula for sum of terms in g.p. which is given by

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So, our equation becomes ,

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Hence ,

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