2 years ago

Please help thankyou!

Mathematics

1 answer:

Dafna11 [192]2 years ago

6 0

I don't know what it's says

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The quotient of two and five times a number

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Answer: 2 / 5x
Explanation:

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2 years ago

Please help with part A!!

zaharov [31]

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3 years ago

20 people applied for a job. Everyone either has a school certificate or diploma or even both. If 14 have school certificates an

STatiana [176]

Given:

Either has a school certificate or diploma or even both = 20 people

Having school certificates = 14

Having diplomas = 11

To find:

The number of people who have a school certificate only.

Solution:

Let A be the set of people who have school certificates and B be the set of people who have diplomas.

According to the given information, we have

$n(A)=14$

$n(B)=11$

$n(A\cup B)=20$

We know that,

$n(A\cup B)=n(A)+n(B)-n(A\cap B)$

$20=14+11-n(A\cap B)$

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Subtract both sides by 25.

$20-25=-n(A\cap B)$

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$5=n(A\cap B)$

We need to find the number of people who have a school certificate only, i.e. $n(A\cap B')$ .

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$n(A\cap B')=9$

Therefore, 9 people have a school certificate only.

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Anna35 [415]

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