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saul85 [17]
2 years ago
13

The length of a rectangle is 4 meters less than twice it's width. The area of the rectangle is 70 find the demotions of the rect

angle
Mathematics
1 answer:
Nana76 [90]2 years ago
5 0

Answer:

di seguito. . e 6. . e tu, se hai bisogno. . e 6 di 74 9 di . . e poi a me. ma se lo vuoi sapere cosa ne pensi. inoltre

Step-by-step explanation:

, 6, , , . h e di sicuro, , , , . h e di sicuro, , e poi

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How many possible committees of 4 people can be chosen from 15 men and 20 women so that at least two women should be on each com
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<span>If there has to be 2 men and 2 women, we know that we must take a group of 2 men out of the group of 15 men and a group of 2 women out of the group of 20 women. Therefore, we have:

(15 choose 2) x (20 choose 2)


(15 choose 2) = 105

(20 choose 2) = 190

190*105 = 19950

Therefore, there are 19950 ways to have a group of 4 with 2 men and 2women.</span>

 

<span>If there has to be 1 man and 3 women, we know that we must take a group of 1 man out of the group of 15 men and a group of 3 women out of the group of 20 women. Therefore, we have:

(15 choose 1) x (20 choose 3)


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<span>We now find the total outcomes of having a group with 4 women.

We know this is the same as saying (20 choose 4) = 4845</span>

Therefore, there are 4845 ways to have a group of 4 with 4 women.

 

We now add the outcomes of 2 women, 3 women, and 4 women and get the total ways that a committee can have at least 2 women.

 

19950 + 17100 + 4845 = 41895 ways that there will be at least 2 women in the committee


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