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Alecsey [184]
3 years ago
9

keishas mom buhys 2 gallons of lemonade she serves 1 cup each gor 20 quests how many cups of lemonade remain

Mathematics
1 answer:
Natasha2012 [34]3 years ago
5 0
There are 16 cups in a gallon.  You have 2 gallons to begin with, so you have 32 cups to begin.

You give out 20 cups, so you only have 32-20 cups left.  32-20=12.  You have 12 cups left.
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Answer:

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Step-by-step explanation:

we know that

P(║ x -\mu║ \leq  k\sigma) \geq 1 -\frac{1}{k^2}

so, \mu = 150, \sigma = 20

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x - N(150, 20^2)

P(X \leq 170) = 0.8413447

check

P norm = \frac{170 - 150}{20}= 0.8413447

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