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Juliette [100K]
2 years ago
7

Set A={1,2,3,4,5,6} two numbers from set A are selected at random without replacement and their sum recorded how many different

sums are possible
Mathematics
1 answer:
wolverine [178]2 years ago
6 0
The minimum sum is 3 and the maximum is 11. So there are 9 different possible sums.
There are 30 ways to get these 9 different sums.
The table below shows all outcomes.

1 2 3 4 5 6
———————————-
1 | X 3 4 5 6 7
2 | 3 X 5 6 7 8
3 | 4 5 X 7 8 9
4 | 5 6 7 X 9 10
5 | 6 7 8 9 X 11
6 | 7 8 9 10 11 X
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Answer:

Simplifying
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Solving
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Move all terms containing x to the left, all other terms to the right.

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Simplifying
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Solving
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Move all terms containing x to the left, all other terms to the right.

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4x + 7y + -7y = -9 + -7y

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