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liberstina [14]
3 years ago
10

there are 12 boys and 13 girls in a class. There are 10 boys and 15 girls in a second class. what is the probability that both s

tudents will be boys from either class?
Mathematics
1 answer:
o-na [289]3 years ago
3 0
22 out of 50 would be the answer
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Find the coordinates of the image under the transformation (x – 4, y + 6) for ∆XYZ at X(-6, 1), Y(4, 0), Z(1, 3)
Afina-wow [57]

Answer:

I think b

Step-by-step explanation:

I prefer B but it also might be D

6 0
3 years ago
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A light bulb factory produces 922 light bulbs every hour. Approximately 3.34% of the light bulbs are defective, and do not work.
Nikitich [7]

Answer:

The value is  \sigma = 5.46  

Step-by-step explanation:

From the question we are told that

  The number of light produced in an hour is  n  =  922

  The proportion of the bulb that are defective is  p =  0.0334

  Generally given from the question that we should use binomial distribution it then means that the standard deviation is mathematically evaluated as  

           \sigma = \sqrt{ n  *  p  (1-p)}

=>         \sigma = \sqrt{ 922  *  0.0334 *  (1-0.0334)}

=>         \sigma = 5.46  

8 0
3 years ago
The above Venn diagram represents students involved in different extracurricular activities at Franklin High School. Extracurric
Anna [14]
From the given Venn diagram, the number of students who participate in at least 2 types of sports is
66 + 32 + 74 + 97 = 269

The total number of students is 824.
The percentage that participates in at least 2 type of sports (2 or more) is
100(269/824 = 32.6%

Answer: D.  32.6%


3 0
3 years ago
Sales of $10,000 increase by 65% each year.
Sati [7]

Answer:

hope this helps

Step-by-step explanation:

65% of 10,000

.65 * 10,000

6500

After one year-

10,000 +6500

16500

7 0
3 years ago
100+50x=150+30x please answer thi and thank you
Anna [14]

Subtract 100 from both sides

50x = 150 + 30x - 100

Simplify 150 + 30x - 100 to 30x + 50

Subtract 30x from both sides

50x - 30x = 50

Simplify 50x - 30x to 20x

20x = 50

Divide both sides by 20

x = 50/20

Simplify 50/20 to 5/2

<u>x = 5/2</u>

<em>In decimal: 2.5</em>

4 0
3 years ago
Read 2 more answers
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