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Rom4ik [11]
2 years ago
7

A literary magazine editor must choose 4 short stories for this month's issue from 17 submissions. in how many ways can the edit

or choose this month's stories?
Mathematics
1 answer:
Sauron [17]2 years ago
5 0
The item above is answered through the concept of Combination since the arrangement of how the magazines are to be chosen from the total number of magazines given is not a factor. The mathematical expression for this combination is,

   n = 17C4

or "combination of 17 taken 4. 

    n = (17!) / (4!)(17-4)!

    n = 2380


<em>Answer: 2,380</em>
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What is the solution to this system of equations? Y= 2x - 3.5 x - 2y = -14
goldfiish [28.3K]

Answer:

x=7

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Step-by-step explanation:

1. You can apply the method of substitution, as you can see below:

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x-2(2x-3.5)=-14\\x-4x+7=-14\\x=7

- Substitute the value of x obtain into the first equation, then the value of y is:

y=2(7)-3.5\\y=10.5


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