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snow_lady [41]
2 years ago
5

Step 1: Subtract 3 from both sides of the inequality.

Mathematics
2 answers:
ArbitrLikvidat [17]2 years ago
6 0

Answer:

>x   > \frac{1}{5}  \\

Step-by-step explanation:

5 – 8x < 2x + 3

Subtract 3 from both sides of the inequality, we get

=  \:  - 3  + 5 - 8x < 2x + 3 \\  =  \:  > 2 - 8x < 2x

Subtract 2x from both sides, we get

=  \:  > 2 - 8x - 2x < 2x - 2x \\  =  \:  > 2 - 10x < 0 \\  =  \:   > - 10x < 2 \\  =  \:   >  \frac{( - 10)x}{( - 10)} >  \frac{( - 2)}{( - 10)}  \\  = >x >  \frac{1}{5}

Mandarinka [93]2 years ago
5 0

Answer:

I'm slightly confused with the way you wrote the question xD

But I believe you were asking what step 2 is

In that case the answer would be the 4th choice.

Add 8x to both sides of the inequality.  

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Answer:

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Step-by-step explanation:

For each adult over 50, there are only two possible outcomes. Either they wear glasses, or they do not. This means that we use the binomial probability distribution to solve this problem.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinatios of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

In this problem we have that:

n = 10, p = 0.7

What is the probability that at least six wear glasses?

P(X \geq 6) = P(X = 6) + `P(X = 7) + P(X = 8) + P(X = 9) + P(X = 10) = 0.8497

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5 0
3 years ago
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Answer:

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8 0
3 years ago
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Sliva [168]

Answer:

C

Step-by-step explanation:

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option C

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s2008m [1.1K]

Answer:

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3 0
3 years ago
Read 2 more answers
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