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ss7ja [257]
3 years ago
8

A man paid $296 for 8 books. How much did he pay for each book?

Mathematics
1 answer:
Dahasolnce [82]3 years ago
4 0

Divide total pain by number of books.

296/8 = 37

He paid $37 per book

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The probability that a randomly selected elementary or secondary school teacher from a city is a female is , holds a second job
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Answer:

The probability that an elementary or secondary school teacher selected at random from this city is a female or holds a second job is 0.90.

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Denote the events as follows:

<em>X</em> = an elementary or secondary school teacher from a city is a female

<em>Y</em> = an elementary or secondary school teacher holds a second job

The information provided is:

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P(X\cup Y)=P(X)+P(Y)-P(X\cap Y)\\=0.46+0.66-0.22\\=0.90

Thus, the probability that an elementary or secondary school teacher selected at random from this city is a female or holds a second job is 0.90.

4 0
3 years ago
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