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3 years ago

If KC = 31, what is KN?

Mathematics

2 answers:

Alex3 years ago

8 0

Answer:

KN = 74

Step-by-step explanation:

Given: KC= 31 , KC = 2x + 10 and CN = 4x + 1

We have to find the KN.

Since, KC = 31

also KC = 2x + 10

Comparing both we get,

31 = 2x + 10

2x = 21

$x=\frac{21}{2}$

Also, CN = 4x + 1 = $4(\frac{21}{2})+1=43$

Thus, KN = KC + CN

KN = 31 + 43 = 74

Thus, KN = 74

Olegator [25]3 years ago

4 0

KC= 31-10= 21
21÷2=10.5
KN= 10.5×4=42
42+1=43
KN=43

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3 years ago

There is a 30 percent chance that A can fix her busted computer. If A cannot, then there is a 40 percent chance that her friend

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(b) 0.40

Step-by-step explanation:

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Consider that events X and Y are mutually exclusive.

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Here the two events can be defined as follows:

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That is, P (A and B) = 0.

(a)

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= 0.30 + 0.40 - 0

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(b)

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