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jok3333 [9.3K]
3 years ago
10

Find X 20+4x=28I want to know this answer as it confuses me ​

Mathematics
1 answer:
ser-zykov [4K]3 years ago
6 0

Hey!

--------------------------------------------------

Steps To Solve:

20 + 4x = 28

~Subtract 20 to both sides

20 + 4x - 20 = 28 - 20

~Simplify

4x = 8

~Divide 4 to both sides

4x/4 = 8/4

~Simplify

x = 2

--------------------------------------------------

Hence, the answer is  \Large\boxed{\mathsf{x~=~2}}

--------------------------------------------------

Hope This Helped! Good Luck!

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1. $1.23 per pair
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Answer: 0.421

Step-by-step explanation:

Heavy smoker = 20%

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We can assume that the probability that a non-smoker is going to die in the next 5 years be y.

Since light smokers were twice as likely as nonsmokers to die during the five-year study, the probability will be:

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Probability for the Heavy smokers will be:= 2 × 2y = 4y

The expected number of people that will die for each in the next 5 years will be:

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= 50% × y

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The probability that the participant was a heavy smoker will be:

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3 years ago
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Answer:

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