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kodGreya [7K]
3 years ago
10

Nita gana $ 20 por semana paseando al perro de su vecino. También gana $ 2 por cada rosa que vende de su jardín de rosas. Nita q

uiere que sus ingresos semanales sean de al menos 50 dólares. Cree una desigualdad que represente correctamente la situación de Nita arrastrando y soltando los tres valores en los espacios apropiados provistos. X es la cantidad de rosas que Nita necesita vender.
Mathematics
1 answer:
Rudik [331]3 years ago
4 0

Answer:

La situación está representada por el siguiente sistema:

y = 20+2\cdot x

y \ge 50

Donde:

x - Cantidad de rosas vendidas semanalmente.

y - Ganancia semanal, medida en dólares.

Step-by-step explanation:

De acuerdo con el enunciado, Nita gana una cantidad fija cada semana por pasear al perro de su vecino, con un monto de $ 20, mientras que gana en función de la cantidad de rosas a vender, con un valor unitario de $ 2. Si ella desea ganar al menos $ 50, por tanto, se requiere construir el siguiente sistema, conformado por una ecuación y una inecuación:

y = 20+2\cdot x (1)

y \ge 50 (2)

Donde:

x - Cantidad de rosas vendidas semanalmente.

y - Ganancia semanal, medida en dólares.

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A paperweight has the shape of a regular triangular Pyramid find the area of the paperweight
s2008m [1.1K]

Answer:

<h2>70.75 in²</h2><h2></h2>

Step-by-step explanation:

area of a triangular pyramid = base area + 3(triangular sides area)

                                              = 1/2 (5) 4.3  +  3 (1/2 x 5 x 8)

                                              = 10.75 + 3(20)

                                              = 70.75 in²

5 0
3 years ago
After Take Two began renting DVDs at their video store, business soared. Between 2005 and 2010, profits increased at an average
WITCHER [35]

Answer: PROFITS After Take Two began renting DVDs at their video store, business soared. Between 2000 and 2005, profits increased at an average rate of $9,000 per year. Total profits in 2005 were $45,000. If profits continue to increase at the same rate, what will the total profit be in ...

6 0
3 years ago
4. Amazon executives believe that at least 70% of customers would return a product 2 days after it arrives at their home. A samp
inysia [295]

Using the <u>normal distribution and the central limit theorem</u>, it is found that there is a 0.1635 = 16.35% probability of a sample result with 68% or fewer returns prior to the third day.

In a normal distribution with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

  • It measures how many standard deviations the measure is from the mean.  
  • After finding the z-score, we look at the z-score table and find the p-value associated with this z-score, which is the percentile of X.
  • By the Central Limit Theorem, for a proportion p in a sample of size n, the sampling distribution of sample proportions has mean \mu = p and standard error s = \sqrt{\frac{p(1 - p)}{n}}

In this problem:

  • Sample of 500 customers, hence n = 500.
  • Amazon believes that the proportion is of 70%, hence p = 0.7

The <u>mean and the standard error</u> are given by:

\mu = p = 0.7

s = \sqrt{\frac{p(1 - p)}{n}} = \sqrt{\frac{0.7(0.3)}{500}} = 0.0205

The probability is the <u>p-value of Z when X = 0.68</u>, hence:

Z = \frac{X - \mu}{\sigma}

By the Central Limit Theorem

Z = \frac{X - \mu}{s}

Z = \frac{0.68 - 0.7}{0.0205}

Z = -0.98

Z = -0.98 has a p-value of 0.1635.

0.1635 = 16.35% probability of a sample result with 68% or fewer returns prior to the third day.

A similar problem is given at brainly.com/question/25735688

7 0
2 years ago
If you have x, and your equation is 5/8x + 1/5x=99, what is x
noname [10]

\frac{5}{8x}  +  \frac{1}{5x}  = 99 \\  \\  \frac{33}{40x}  = 99  \\ \\ 40x = 33 \times 99 \\  \\ x = 81.675
8 0
3 years ago
Question below :) :) :p
katrin [286]
P>7, because...
26p-20>14p+64
-14p       -14p (Subtract 14 from both sides)
-----------------------
12p-20>64
     +20 +20 (add 20 to both sides)
----------------
12p>84
/12   /12 (divide both sides by 12)
-----------
p>7
Hope this helps!
5 0
4 years ago
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