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posledela
3 years ago
10

The average annual salary for all u.s. teachers is $47,750. assume that the distribution is normal and the standard deviation is

$5680. find the probability that a randomly selected teacher earns
a. between $35,000 and $45,000 a year
b. more than $40,000 a year
c. if you were applying for a teaching position and were offered $31,000 a year, how would you feel (based on this information)?
Mathematics
1 answer:
nalin [4]3 years ago
3 0
<span>between 35k and 45k
so answer a.</span>
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2 terms

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Here, 9a is one term while 11p is the other

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Can someone help me with these questions I want to make sure I got them right ​
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Step-by-step explanation:

1. n = (11/6 -2/3)(4/3) = (7/6)(4/3) = 14/9

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2. x = (9.82 -28.18)/5.1 = -3.6

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3. y = 3/2 -1/4 = 5/4

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4a. t = 2(3 -1/4) = 11/2

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2 years ago
Luisa and Connor had $360 altogether . After Connor gave Luisa 2/5 of his money, she had the same amount of money has he did. Ho
Liula [17]

Answer:

$300

Step-by-step explanation:

Let's say that L is the amount of money Luisa had in the beginning, and C is the amount of money Connor had in the beginning.

C + L = 360

C - 2/5 C = L + 2/5 C

Simplifying the second equation:

3/5 C = L + 2/5 C

1/5 C = L

Substituting into the first equation:

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6/5 C = 360

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Connor originally had $300, and Luisa $60.  Connor gave Luisa $120, and they both had $180.

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