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2 answers:
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There are 142506 ways in which 5 students can be selected out of 30 students.
<h3>How can a certain number of individuals be selected using a combination?</h3>The selection of 5 students out of 30 students can be achieved with the use of combination since the order of selection is not required to be put into consideration.
By using the formula:
where;
- n = total number of individual in the set = 30
- r = number of chosing individuals to be selected = 5
Learn more about combination here:
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<span><u><em>Answer:</em></u>
d = 25
<u><em>Explanation:</em></u>
To get the value of d, we will need to isolate the d on one side of the equation.
<u>This can be done as follows:</u>
</span>
<span>
<u>First, we will do cross multiplication as follows:</u>
40*15 = 24*d
600 = 24d
<u>Then, we will isolate the d as follows:</u>
24d = 600
</span>
<span>
d = 25
Hope this helps :)</span>
d = 25
<u><em>Explanation:</em></u>
To get the value of d, we will need to isolate the d on one side of the equation.
<u>This can be done as follows:</u>
</span>
<u>First, we will do cross multiplication as follows:</u>
40*15 = 24*d
600 = 24d
<u>Then, we will isolate the d as follows:</u>
24d = 600
</span>
<span>
d = 25
Hope this helps :)</span>