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yarga [219]
1 year ago
5

El número de metros de cable necesarios para un elevador depende del número de pisos en el servicio del edificio. Supon que m=7p

+ 12, donde m es el número de metros de cable del elevador y p es el número de pisos de construcción.
¿ Qué cantidad de cable necesitará un elevador para un edificio de nueve pisos?
¿De cuántos pisos es un edificio que utilizo 124 m de cable en su elevador?
Mathematics
1 answer:
maksim [4K]1 year ago
5 0
Primera pregunta: se necesitan 75 metros para 9 pisos
Segunda pregunta: 124 metros es suficiente para 16 pisos
Espero que esto ayude!
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25 miles

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Given that:

Cammel can travel 20 miles in 8 hours;

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Rate = 20 miles / 8 hours = 2.5 miles per hour

The distance traveled in 10 hours at this rate will be :

Distance = speed or rate * time

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7. Tamara goes on a spring break trip with her school to visit historical sites in Italy. She purchases $200 of souvenirs while
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Step-by-step explanation:

6 0
1 year ago
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James folds a piece of paper in half several times,each time unfolding the paper to count how many equal parts he sees. After fo
Snezhnost [94]

Answer:

There will be total 2048 parts of the given paper if James if able to fold the paper eleven times.

The needed function is y = 2 ^n

Step-by-step explanation:

Let us assume the piece of paper James decides to fold is a SQUARE.

Now, let us assume:

n : the number of times the paper is folded.

y : The number of parts obtained after folds.

Now, if the paper if folded ONCE ⇒  n = 1

Also, when the pap er is folded once, the parts obtained are TWO equal parts.

⇒  for n = 1 , y = 2       ..... (1)

Similarly, if the paper if folded TWICE  ⇒  n = 2

Also, when the paper is folded twice, the parts obtained are FOUR equal parts.

⇒  for n = 2 , y = 4       ..... (2)

⇒y  = 2^2  =  2^n

Continuing the same way, if the paper is folded SEVEN times  ⇒  n = 7

So, y = 2^ n = 2^7 = 128

⇒  There are total 128 equal parts.

Lastly,  if the paper is folded ELEVEN  times  ⇒  n = 11

So, y = 2^ n = 2^{11} = 2048

⇒  There are total 2048 equal parts.

Hence, there will be total 2048 parts of the given paper if James if able to fold the paper eleven times.

And the needed function is y = 2 ^n

8 0
2 years ago
A scientist who studies teenage behavior was interested in determining if teenagers spend more time playing computer games then
Marina86 [1]

Answer:

- The amount of time greater than 10.2 hours for this year.

- The P_{value} is 0.01358.

Step-by-step explanation:

Given information:

mean, X = 10.2 hours

sample, n = 15

using t distribution

test statistics = 2.822

P_{value} = 2 x P(t_{n-1} > test statistics)

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                              = 2 x 0.00679

                              = 0.01358

P_{value} is less than 0.10 which indicates that the amount of time greater than 10.2 hours for this year.

5 0
2 years ago
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