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pishuonlain [190]
2 years ago
6

Find the probability of a couple having at least one boy when a couple has three children

Mathematics
2 answers:
elixir [45]2 years ago
8 0

Answer:

7/8

Step-by-step explanation:

assuming the probability of getting a boy and girl is 50 50,

(1/2)^3=1/8

1-1/8=7/8

gulaghasi [49]2 years ago
7 0
If you have one child you either have a boy or girl can you tell me the chance of having a boy
I am asking this to have an understanding of what you know
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The difference between two numbers is 4. Three times the larger is 2 more than five times the smaller. Find the numbers.
Vitek1552 [10]

Let x represent the larger number.
Let y represent the smaller number.
x-y=4 Given
3x=5y-2 Given 
Now we can just substitute; let x=4+y 
Substitute 4+y for x in the second equation:
3(4+y)=5y-2
12+3y=5y-2
-2y=-14
y=7
Substitute back (into BOTH equations to double check work).
x, the larger number, is 11 
8 0
3 years ago
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djverab [1.8K]

Answer:

at 6pm it was 18 degrees

Step-by-step explanation:

10 pm:  -10

9 pm : -3

8 pm: 4

7 pm: 11

6 pm: 18

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3 years ago
school guidelines require that there must be atleast 2 chaperones for every 25 students going on a school trip.how many chaperon
Anna007 [38]

Answer:

there must be at least 6 chaperones

Step-by-step explanation:

25 x 3= 75 so 2 chaperons x 3= 6 with a remainder of 5 students

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3 years ago
I need help with a math problem
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2 years ago
The sum of two numbers is 51 and the difference is 27. What are the numbers?
Bezzdna [24]

Answer:

26

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50-20=30+1=31-7=26

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