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2 years ago

This...ik what mean is I'm just trying to find what the original numbers would be?

Mathematics

2 answers:

Elodia [21]2 years ago

8 0

Answer
17.5

Explanation 17×5 is five but 2×5 is seven so 7×10 is 10

erastova [34]2 years ago

5 0

Answer:

17.5

Step-by-step explanation:

all the 10 numbers added together equal 10*16 = 160

-this is because all of the numbers added, and then divided by 10 equals 16

so the numbers in total, added equal 160.

subtract 20 (7+13) from 160 = 140

divide by 8

140/8 = 17.5

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STatiana [176]

Given:

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

Having school certificates = 14

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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

$n(A)=14$

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We know that,

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

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

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3 years ago

A 250 ml bottle of water treatment liquid will treat up to 625 litres of water. Given that 1 cubic meter=1000 litres, how much t

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You will need:
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This...ik what mean is I'm just trying to find what the original numbers would be? ​

This...ik what mean is I'm just trying to find what the original numbers would be?