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Tanzania [10]
3 years ago
8

Simplify the expression a+2c-5b-c+a-b

Mathematics
1 answer:
romanna [79]3 years ago
6 0
A + 2c - 5b - c + a - b
We're gonna have to combine like terms.

(a+a)+(-5b-b)+(2c-c)

2a-6b+c This is your answer
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Answer:

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In a recent survey of 655 working Americans ages 25-34, the average weekly amount spent on lunch was 43.76 with standard deviati
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Answer:

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The Empirical Rule states that, for a normally distributed random variable:

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Mean of 43.76, standard deviation of 2.67.

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By the Empirical Rule, within 2 standard deviations of the mean. So

43.76 - 2*2.67 = 38.42

43.76 + 2*2.67 = 49.1

Between 38.42 and 49.1.

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