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Lemur [1.5K]
4 years ago
14

Each day, Viktor practices piano for x minutes and practices violin for 30 minutes.

Mathematics
2 answers:
Vladimir79 [104]4 years ago
8 0
5 (x + 30) is your answer

you will distribute the 5 to both x and 30, as there are 5 thirty's and 5 x's

hope this helps

May Joan of Arc give you good tidings lol*
Elena L [17]4 years ago
5 0
So first, he could reorder everything, into:

x + x + x + x + x + 30 + 30 + 30 + 30 + 30

And then if you add all the xs and 30s up,

5x + 150.

So therefore we now know it isn't the first, second, or third choices because those aren't remotely close.

The third one, however, is the correct choice, because:

5(x+30), if you use the distributive property, equals 5x + 150.
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Solve this sum 3x-4=17
poizon [28]

Answer:

7

Step-by-step explanation:

7 0
3 years ago
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A worn out bottling machine does not properly apply caps to 5% of the bottles it fills. If you randomly select 20 bottles from t
guajiro [1.7K]

Probability would been equal to 0.9841 if we randomly select 20 bottles it fills.

<h3>What is Probability ?</h3>

The ratio of good outcomes to all possible outcomes of an event is known as the probability. The number of the  positive results for the experiment with 'n' outcomes can also be represented by the symbol x. The probability of an event can be calculated using the following formula.

Probability(Event) = Positive Results/Total Results = x/n

Given,

n = 20

p = 0.05

Thia information gives information about binomial distribution with parameter n = 20 , p = 0.05

Let X be the number of bottles have caps that she not properly applied

    X∝ B( n=20 , p= 0.05)

The p.m.f of X is

P( X=0)= (\frac{20}{x}) ( 0.05)ˣ (1 - 0.05)²⁰ ⁻ˣ

                                                       ; x = 0 , 1, 2.......20

                                                         0 < p < 1

                                                         q= 1 - p

= 0                                                    ; otherwise

P {x ≤ 3} = P { X = 0 } + P{ x= 1 } + P { x= 2 } + P { x= 3}

P( X=0)= (\frac{20}{0}) ( 0.05)⁰ (1 - 0.05)²⁰ ⁻⁰  = 0.3585

P( X = 1)= 0.3774

P( X= 2) = 0.1887

P( X= 3) = 0.0596

                = 0.3585+ 0.3774 +  0.1887+ 0.0596

                 = 0.9841

To know more about Probability, Visit:

brainly.com/question/11234923

#SPJ4

6 0
1 year ago
How do you solve this problem?
sp2606 [1]
Fallow the steps in the picture

7 0
3 years ago
How would the sum of cubes formula be used to factor x3y3+343? Explain the process. Do not write the factorization.
Zepler [3.9K]

x^3y^3 + 343

The way the sum of cubes works is by taking the roots of each term and applying the formula.

The sum of cubes is as follows:

a^3 + b^3 = (a + b)(a^2 - ab + b^2)

In this case, we would display it like this:

x^3y^3 + 343 = (xy + 7)(x^2y^2 - 7xy + 49)


7 0
4 years ago
Read 2 more answers
I need Help! <br> +9 - (+12) =?
Ivanshal [37]

Answer:

+9-12

==3

Step-by-step explanation:

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5 0
3 years ago
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