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mariarad [96]
3 years ago
6

-5/8-(-4/3) plz help I'm bad at fractions

Mathematics
1 answer:
alexandr1967 [171]3 years ago
6 0

Answer:

Step-by-step explanation:

-4/

3

) = -5/

8

- (-4/

3

) = -5 · 3/

8 · 3

- (-4) · 8/

3 · 8

= -15/

24

- (-32/

24

) = -15 - (-32)/

24

= 17/

24

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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

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n(B)=11

n(A\cup B)=20

We know that,

n(A\cup B)=n(A)+n(B)-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').

n(A\cap B')=n(A)-n(A\cap B)

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n(A\cap B')=9

Therefore, 9 people have a school certificate only.

3 0
3 years ago
If d=8, find the value of 3d. _____
yan [13]

Answer:

24

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Answer:

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