2 years ago

Which of these equations is balanced ?

Mathematics

1 answer:

marishachu [46]2 years ago

3 0

I say A because it makes it sound correct

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Of the 8 students in the chess club, three will represent the club at an upcoming competition. How many different 3-person teams

xz_007 [3.2K]

I think that this is a combination problem. From the given, the 8 students are taken 3 at a time. This can be solved through using the formula of combination which is C(n,r) = n!/(n-r)!r!. In this case, n is 8 while r is 3. Hence, upon substitution of the values, we have

C(8,3) = 8!/(8-3)!3!
C(8,3) = 56

There are 56 3-person teams that can be formed from the 8 students.

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2 years ago

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Answer:

2.5x + 5y = 12.5

Step-by-step explanation:

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2 years ago

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