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Sever21 [200]
4 years ago
5

Three consecutive integers have a sum of 243

Mathematics
2 answers:
Aleksandr [31]4 years ago
7 0
Three consecutive integers are n, n+1, and n+2 so

n+n+1+n+2=243

3n+3=243

3n=240

n=80

So the integers are 80,81, and 82
amid [387]4 years ago
4 0
First integer: x
second integer: x+1
third integer: x+2
Set up an equation: 3x+3=243
3x=240
x=80
The integers are 80,81,82
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Answer:

Diana approximately had 128 cards

Step-by-step explanation:

Let n  be the number of cards Diana had. She knows that

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Step-by-step explanation:

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Answer:

32

Step-by-step explanation:

1. If you take 12 balls, 9 could be yellow and 3 could be red. We want at least 12 of the same color, so 30 balls isn't a good minimum

2. If you take 30 balls, 9 could be yellow, 10 could be red and 11 could be green.  We want at least 12 of the same color, so 30 balls isn't a good minimum.

3. If you take 31 balls, 9 could be yellow, 11 could be red and 11 could be green.  We want at least 12 of the same color, so 31 balls isn't a good minimum.

4. If you take 32 balls, 9 could be yellow, 11 could be red and 12 could be green or 9 could be yellow, 12 could be red and 11 could be green or 7 could be yellow, 13 could be red and 12 could be green or 9 could be yellow, 11 could be red and 12 could be green.

We want at least 12 of the same color, and we have it from the different samples of the 4th trial.

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4 years ago
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Answer:

Step-by-step explanation:

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6 0
3 years ago
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