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sergejj [24]
3 years ago
15

Can you please help me do find a resolution for these equations

Mathematics
1 answer:
rusak2 [61]3 years ago
6 0

Answer:

x=-5

Step-by-step explanation:

I did a for #42

2(x-5)=3x+5

simplify

2x-10=3x+5

subtract 2x from both sides

-10=3x+5

subtract 5 from both sides

-15=3x

divide both sides by 3

-5=x

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If the customer rolls the dice and rents a second movie every Thursday for 20 consecutive weeks, what is the total amount that t
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Answer:

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<em></em>

Step-by-step explanation:

Read attachment to understand the complete question

From the question, we have the following given parameters:

x = Amount paid for a second movie

E(x) = 0.47 --- Expected value of x

SD(x) = 0.15 --- Standard deviation of x

Required

Determine the total amount paid for a second movie for 20 weeks

The required implies that we calculate the expected value for a duration of 20 weeks.

i.e.

n = 20

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E(nx) = n * E(x)

Substitute 20 for n

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Substitute 0.47 for E(x)

E(20x) = 20 * 0.47

E(20x) = 9.4

<em>Hence, the expected amount for a duration of 20 weeks is $9.4</em>

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3 years ago
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