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FrozenT [24]
3 years ago
6

SOMEONE PLEASE HELP!!! THIS IS MY LAST QUESTION!!!

Mathematics
2 answers:
Natali [406]3 years ago
8 0

Answer:

The answer to the question provided is 30.

Step-by-step explanation:

\frac{18}{27}  =  \frac{20}{x} \\  \\  \frac{540}{18}   =  \frac{18x}{18}  \\  \\30 = x

Happy to help!

nirvana33 [79]3 years ago
5 0
<h3>Answer:  x = 30</h3>

=====================================================

Explanation:

Due to the parallel lines, we have two similar triangles. So the sides are proportional.

18/27 = 20/x

2/3 = 20/x

2x = 3*20

2x = 60 .... cross multiply

x = 60/2

x = 30

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

Another way you can approach it is to say

18/(18+27) = 20/(20+x)

18/45 = 20/(20+x)

2/5 = 20/(20+x)

2(20+x) = 5*20

40+2x = 100

2x = 100-40

2x = 60

x = 60/2

x = 30

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In the casino game of roulette, a gambler can bet on which of 38 numbers the ball will land when the roulette wheel is spun. On
ollegr [7]

Answer:

Expected winnings for one spin = 0.1

Step-by-step explanation:

Expected Value = Sum of [(Probability of X)(Value of X)]

E(X) = Σ [P(X).X]

Two Events : X = +68 , P(X) = 1/38 and X = -2 , P(X) = 37/38

E(X) = [(68) (1/38)] + [(-2)(37/38)]

[(68)(0.03)] + [(-2)(0.97)]

= 2.04 - 1.94

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4 0
4 years ago
A manufacturer of matches randomly and independently puts 24 matches in each box of matches produced. The company knows that one
DochEvi [55]

Answer:

There is a 0.36% Chance of 1 or fewer in every 24 matches being flawed.

Step-by-step explanation:

Firstly we need to know what 1/10 of 5 is. It is 0.5.

You then need to multiply 24 by 1.5 to get 36. We then need to  divide that by 100 to get a percentage and we end up with 0.36%

Here is an explanation of how to get percentages: https://www.mathsisfun.com/converting-fractions-percents.html

6 0
4 years ago
Which of the following is the solution set of -2|x| &lt; -8
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Answer:

{x| x < -4\:or\: x > 4}

Step-by-step explanation:

−2|x| < −8 ↷

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___ __ ___ ___

−2 −2 −2 −2

-4 > x OR 4 < x

Whenever you multiply\divide by a <em>negative</em>, you reverse the inequality symbol.

I am joyous to assist you anytime.

3 0
3 years ago
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Step-by-step explanation:

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4 years ago
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Answer:

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