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kodGreya [7K]
3 years ago
10

What is a third in 420

Mathematics
1 answer:
kolezko [41]3 years ago
7 0
420/3 = 140 rubies
Since they use 20 rubies you would do the total amount of rubies by 20.
140/20 = 7
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I've attached the complete question.

Answer:

Only participant 1 is not cheating while the rest are cheating.

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Participant 3: X = 7

Participant 4: X = 0

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z = (x - μ)/s

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