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Snowcat [4.5K]
3 years ago
11

A machine can insert letters in envelopes at the rate of 120 per minute. Another machine can stamp the envelopes at the rate of

3 per second. How many such stamping machines are needed to keep up with 18 inserting machines of this kind?
(A) 12
(B) 16
(C) 20
(D) 22
(E) 24
Mathematics
1 answer:
Norma-Jean [14]3 years ago
7 0
I think the answer is D

Hope it helps :-D
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What is the sum of the probabilities in a uniform probability distribution? A) 0 B) infinite C) 1 D)2
lubasha [3.4K]

\mathfrak{\huge{\pink{\underline{\underline{AnSwEr:-}}}}}

Actually Welcome to the Concept of the Probability.

Basically we have to know that, when there is a specific event for which a probability has to be done, there are always two possibilities that is,

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the Sum of both always end up as 1.

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8 0
3 years ago
On a scale 1/5 drawing of a car, one part is 8 inches long. How long will the actual car part be?
aivan3 [116]
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3 years ago
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Ludmilka [50]

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Step-by-step explanation:

3 0
3 years ago
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miskamm [114]

Find out the value of z

Remember that

z =(x - μ)/σ

we have

μ=18

σ=5

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5 0
1 year ago
Give one real life example of each correlation: positive, negative, and no correlation.
mixer [17]
In a positive correlation, both variables increase together. An example of this is a company's profit's relationship with its sales. The greater the sales, the greater the profit.
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No correlation means the two variables are not related. An example of this is as you get older, it does not mean you will get better grades.
7 0
3 years ago
Read 2 more answers
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