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iragen [17]
2 years ago
13

Help please, i'll give brainliest for the correct answer!

Mathematics
1 answer:
yarga [219]2 years ago
7 0

Answer:

Step-by-step explanation:

-7x > 63

7x < -63

x < -9

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Eric's class consists of 12 males and 16 females. If 3 students are selected at random, find the probability that they
Reptile [31]

Answer:

The probability that all are male of choosing '3' students

P(E) = 0.067 = 6.71%

Step-by-step explanation:

Let 'M' be the event of selecting males n(M) = 12

Number of ways of choosing 3 students From all males and females

n(M) = 28C_{3} = \frac{28!}{(28-3)!3!} =\frac{28 X 27 X 26}{3 X 2 X 1 } = 3,276

Number of ways of choosing 3 students From all males

n(M) = 12C_{3} = \frac{12!}{(12-3)!3!} =\frac{12 X 11 X 10}{3 X 2 X 1 } =220

The probability that all are male of choosing '3' students

P(E) = \frac{n(M)}{n(S)} = \frac{12 C_{3} }{28 C_{3} }

P(E) =  \frac{12 C_{3} }{28 C_{3} } = \frac{220}{3276}

P(E) = 0.067 = 6.71%

<u><em>Final answer</em></u>:-

The probability that all are male of choosing '3' students

P(E) = 0.067 = 6.71%

3 0
3 years ago
Convert 28/50to a percent
velikii [3]
The answer is 56%
You first divide 28 by 50=.56, then since it's a decimal, you move the decimal twice to the right to make a percentage=56%
3 0
3 years ago
A small business earns a profit of $4,500 in
olchik [2.2K]

Answer:

$2750/month

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
A washer and a dryer cost $737 combined. The washer costs $37 more than the dryer. What is the cost of the dryer
jolli1 [7]

Answer: $350

Step-by-step explanation:

$700 divided by 2 is 350

7 0
2 years ago
Simplify (3x − 8) + (2x + 5) − (4x − 8).<br> A) x − 11 <br> B) x + 5 <br> C) x + 21 <br> D) 9x + 5
lozanna [386]

Answer:

B

Step-by-step explanation:

3x-8+2x+5-4x+8

3x+2x-4x    -8+5+8

     x        +        5      

x+5

6 0
2 years ago
Read 2 more answers
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