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LiRa [457]
3 years ago
9

Midway High School has 1500 students. The school district requires that there be 2 janitors for every 125 students.

Mathematics
2 answers:
Phantasy [73]3 years ago
7 0

Answer:

24

Step-by-step explanation:

VMariaS [17]3 years ago
6 0

Answer:

24

Step-by-step explanation:

1500 divided by 125 = 12

12 x 2 = 24

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It’s a statistics mathematical question
Olin [163]

Answer: About 0.8034 of the items will be classified as good.

Step-by-step explanation:

Let's first understand that because 13% of the items are defective, that means 87% of the items are not defective. And because the inspector incorrectly classifies the items 9% of the time, it's important to understand that that means both the defective and the not defective items may be incorrectly classified. In order to figure out what proportion will be classified as 'good,' let's set up a tree diagram:

--0.13--defective

            |__0.09__ classified as 'good'

            |__0.91__ classified as 'defective'

--0.87--not defective

           |__0.09__ classified as 'defective'

           |__0.91__classified as 'good'

This chart essentially reiterates the information in the prompt, showing that 9% of each type of item will be incorrectly classified. Now we need to find the proportion of items that will be classified as 'good.' To do this, we must multiply the proportion of items classified as 'good' by the proportion of items that are either defective or not defective for both types, like this:

(0.13 * 0.09) + (0.87 * 0.91)

this expression in words means: "13% of the items will be classified as good 9% of the time, and the other 87% of the items will be classified as good 91% of the time"

When we multiply and add these numbers together, we get 0.8034, but you should round to 2 or 3 decimal places like the prompt instructs. Hope this helped! :)

3 0
3 years ago
There are 45 new houses being built in a neighborhood. Last month, 1/3 of them were sold. This month, 1/5 of the remaining house
Nastasia [14]
45 new houses...
1/3 were sold......1/3(45) = 45/3 = 15 houses sold.....leaving 45 - 15 = 30 houses left. 1/5 of remaining houses sold....1/5(30) = 30/5 = 6...so 6 more houses were sold.....leaving 30 - 6 = 24 houses

24 houses are left <==
6 0
3 years ago
Read 2 more answers
The sum of two numbers is 22, and their difference is 12. What are the numbers?
Shkiper50 [21]

Answer:

the anwser is 10 and 12

d

d

d

8 0
3 years ago
Read 2 more answers
ILL BRAINLIEST YOU IF YOU GET IT RIGHT! Please help me
lara31 [8.8K]

Answer:

x = 25

Step-by-step explanation:

If JK and MN are parallel lines, then ∠JKL = ∠LMN = 61°

By the opposite angle rule, ∠JLK = 39°

In a triangle three angles sum up to 180°

so, ∠JLK + ∠JKL +LJK = 180°

39° + 61° + 3x+ 5 = 180°

3x = 75

x = 25

5 0
3 years ago
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Please help me out thank you.​
s2008m [1.1K]

its A

Step-by-step explanation:

6 0
3 years ago
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