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kow [346]
3 years ago
11

Assume that the salaries of elementary school teachers in the united states are normally distributed with a mean of $26,000 and

a standard deviation of $5000. what is the cutoff salary for teachers in the bottom 10%?
Mathematics
1 answer:
Irina-Kira [14]3 years ago
7 0
<span>To solve this we would need to find the bottom 10% z-score and find c such that Pr(X<c)=0.1. We find that c = -1.2815 using normal distribution. The cutoff salary for teachers in the bottom 10% would be X=26000 + 5000 x (-1.28155) or 19,592.24.</span>
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plz help Pru, Piper, and Phoebe share spices in the ratio 5:3:4. If Pru has 24 more spices than Piper, how many spices does Phoe
disa [49]

Answer:


Step-by-step explanation:

Pru, Piper, Phoebe ratio 5:3:4vadded = 12

What this means is Pru has 5/12 of the total amount, Piper has 3/12 of the total amount, and Phoebe has 4/12 of the total amount of spices.


pru = piper + 24

5/12x = 3/12x + 24

5/12x - 3/12x = 24

2/12x = 24

x = 24 / (1/6)

x = 24 * 6

x = 144 spices in total


Pru has : 5/12(144) = 720/12 = 60 spices

Piper has : 3/12(144) = 432/12 = 36 spices

Phoebe has : 4/12(144) = 576/12 = 48 spices


I hope this can help.

6 0
3 years ago
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polet [3.4K]
Hi!

When we write a number in scientific notation, we write it like this:
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x = negative if the decimal is moved to the right. positive if moved to the left.

Okay, so we need to move the decimal in the number <span>0.0059 to the right to make it between one and 10.
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N = 5.9
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Since we moved the decimal to the right 3 times,
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5.9 × 10^{-3}
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7 0
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UkoKoshka [18]

Answer:

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Margarita [4]

Answer:

Step-by-step explanation:

8 questions worth 10 points...

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Artyom0805 [142]

Answer is A

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8 0
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