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3 years ago

There were 120 coats in the clearance sale. During the first week of the sale 55% of the coats were sold. How many

Mathematics

2 answers:

Gennadij [26K]3 years ago

8 0

Answer:

Step-by-step explanation:

5÷100

=0.55

0.55×120

=66

Fynjy0 [20]3 years ago

4 0

Answer:

See below.

Step-by-step explanation:

Divide to turn the percentage into a decimal.

$\frac{55}{100} =0.55$

Then, multiply the percentage by the total to get the amount.

$120*.55=66$

Answer:  $66$ 

:)

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Statistics Probability

andriy [413]

Answer:

Explained below.

Step-by-step explanation:

Denote the variable as follows:

M = male student

F = female student

Y = ate breakfast

N = did not ate breakfast

(a)

Compute the probability that a randomly selected student ate breakfast as follows:

$P(Y)=\frac{n(Y)}{N}\\\\=\frac{198}{330}\\\\=0.60$

(b)

Compute the probability that a randomly selected student is female and ate breakfast as follows:

$P(F\cap Y)=\frac{n(F\cap Y)}{N}\\\\=\frac{121}{330}\\\\=0.367$

(c)

Compute the probability a randomly selected student is male, given that the student ate breakfast as follows:

$P(M|Y)=\frac{n(M\cap Y)}{n(Y)}\\\\=\frac{77}{198}\\\\=0.389$

(d)

Compute the probability that a randomly selected student ate breakfast, given that the student is male as follows:

$P(Y|M)=\frac{n(Y\cap M)}{n(M)}\\\\=\frac{77}{154}\\\\=0.50$

(e)

Compute probability of the student selected "is male" or "did not eat breakfast" as follows:

$P(M\cup N)=P(M)+P(N)-P(M\cap N)\\\\=\frac{n(M)}{N}+\frac{n(N)}{N}-\frac{n(M\cap N)}{N}\\\\=\frac{n(M)-n(N)-n(M\cap N)}{N}\\\\=\frac{154+132-77}{330}\\\\=0.633$

(f)

Compute the probability of "is male and did not eat breakfast as follows:

$P(M\cap N)=\frac{n(M\cap N)}{N}\\\\=\frac{77}{330}\\\\=0.233$

4 0

3 years ago

A feature film runs 2 h 12 min. The theater requires 12 min between performances, and has 12 min of previews and short subjects

GenaCL600 [577]

1:00 ? because it says that there is a needed 12 minuted between the films plus another 12 minutes of previews which equals 24.... sooo 24 plus 36 should equal 60 which is an hour so the answer as far as i know is 1:00.... Hope this helped :)

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3 years ago

Pedro is playing a game where he has to roll a fair number cube with faces labeled from 1 to 6. What is the probability that he

Rudiy27

Answer:

50%

Step-by-step explanation:

Hope it helps

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3 years ago

Which ordered pair is a reflection of (3,7) across the x-axis?

Alla [95]

Answer:

(3,-7)

Step-by-step explanation:

Using the algebraic rule for Rx-axis

(x,y)---->(x,-y)

(3,7)--->(3,-7)

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3 years ago

Krishaun has $5, $10, and $20 coins worth a total of $560. She has the same number of $5 coins as $10 coins, and the same number

valkas [14]

f = t = n five ten and twenty

5n + 10n + 20n = 560

35n = 560

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3 years ago