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Vikentia [17]
3 years ago
11

In a class of 22 students, 13 have a brother and 15 have a sister. There are 3 students who do not have any siblings. What is th

e probability that a student has a brother given that they do not have a sister?
Mathematics
1 answer:
Aneli [31]3 years ago
7 0

Answer:

1/4

Step-by-step explanation:

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kakasveta [241]

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x

Step-by-step explanation:

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3 years ago
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Which of these numbers is a square number<br> 4x10^5<br> 9x10^4<br> 4x10^3<br> 9x10^3
bazaltina [42]

Answer:

<em> </em><em>here </em><em>9</em><em>*</em><em>1</em><em>0</em><em>^</em><em>4</em><em> </em><em>is </em><em>a </em><em>square </em><em>number </em>

Step-by-step explanation:

<em>9</em><em>*</em><em>1</em><em>0</em><em>^</em><em>4</em><em> </em><em>=</em><em> </em><em>9</em><em>0</em><em>0</em><em>0</em><em>0</em>

<em>and </em><em>it </em><em>is </em><em>a </em><em>square </em><em>of </em><em>3</em><em>0</em><em>0</em><em> </em>

6 0
3 years ago
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Savanna spent a total of $116 on 30 plates, 40 cups, and 4 packages of napkins. Matthew spent $1000 on 250 plates, 300 cups, and
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3 years ago
Simplify this algebraic expression.<br><br> 9k + 7 - K + 4 =
Maksim231197 [3]

Answer:

8k+11

Step-by-step explanation:

Combine like terms

9k-k

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9k-k=8k

7+4=11

8k+11

6 0
3 years ago
In the expression 12a+5, identify. The coefficient
marysya [2.9K]
A coefficient is a number multiplied by a variable.

In this case, our variable is a.
The coefficient is 12.

(PS: The +5 that isn't being multiplied by a variable is called a constant)
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3 years ago
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