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Leya [2.2K]
3 years ago
8

What is the perimeter of the Pentagon

Mathematics
2 answers:
avanturin [10]3 years ago
7 0
The answer is p = 5a unless you have a picture of one and it has different lengths om different sides
svet-max [94.6K]3 years ago
7 0
Just add up all the sides
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Subtract.<br> 8- (-5) <br> i cant find the answer to this
Furkat [3]

Answer:

13

Step-by-step explanation:

8-(-5)=\\\\8+5=\\\\13

Hope this helps.

4 0
4 years ago
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Un comerciante de ganado compro cierto número de novillos, todos al mismo precio, por un total de 1 440 000 colones. De estos, v
sergeinik [125]

Queremos encontrar y resolver un sistema de ecuaciones para encontrar el número de novillos comprados y el valor de cada uno.

Encontramos que las soluciones son:

  • Precio = 12,820.5 colones.
  • Número = 112

La información que tenemos es:

El comerciante compro un dado número de novillos, digamos N.

El precio total fue de 1,440,000 colones.

Entonces si el precio de cada novillo es P, tenemos que:

N*P = 1,440,000

Sabemos que vendio 20 a 22,000 colones cada uno, es decir, obtuvo:

20*22,000 colones = 440,000 colones.

Es decir, de momento se tiene una perdida de:

1,440,000 - 440,000 = 1,000,000 colones.

Sí quiere obtener una ganancia de 200,000 colones, debe vender los (N - 20) novillos restantes a 2,000 colones más que P.

De esto planteamos la ecuación:

(N - 20)*(P + 2,000)= 1,000,000 colones + 200,000 colones = 1,200,000 colones.

Entonces tenemos el sistema de ecuaciones:

N*P = 1,440,000

(N - 20)*(P + 2,000) = 1,200,000

Para resolver esto comenzamos por aislar una de las variables en la primera ecuación, aislaremos N

N = (1,440,000)/P

Ahora reemplazamos esto en la otra ecuación:

(N - 20)*(P + 2,000) = 1,200,000

( (1,440,000)/P - 20)*(P + 2,000) = 1,200,000

Ahora debemos resolver esto para P.

1,440,000 - 20*P - 20*2,000 + 2,000*(1,440,000)/P = 1,200,000

- 20*P + 2,000*(1,440,000)/P = -180,000

Multiplicando ambos lados por P, obtenemos:

-20*P^2 + 2,880,000,000 = -180,000*P

Reescribimos esto como una ecuación cuadratica:

-20*P^2 +   2,880,000,000 + 180,000*P = 0

Y podemos resolver esto usando la formula de Bhaskara.

P = \frac{-180,000  \pm \sqrt{(180,000)^2 - 4*(-20)*(2,880,000,000)} }{2*-20} \\\\P = \frac{-180,000  \pm 512,640.22471 }{-40}

Solo nos interesa la solución positiva, que es:

P = = \frac{-180,000  - 512,640.22471 }{-40} = 12,820.5

Es decir, cada novillo le costó 12,820.5 colones.

y sabemos que:

N = 1,440,000/P = 1,440,000/12,820.5 = 112.3

Redondeamos al proximo numero entero, que es 112, donde ese 0.3 debe venir de algun error de redondeo (o más probablemente a un problema mal planteado).

Sí quieres aprender más puedes leer:

brainly.com/question/20868687

8 0
3 years ago
Write the sentence "the product of w and 12 is greater than 54?"
Andre45 [30]

w(12) > 54

Hope this helps!

7 0
3 years ago
What is a Cartesian coordinate plane (math)
Nata [24]
A Cartesian coordinate system is a coordinate system that specifies each point uniquely in a plane by a pair of numerical coordinates, which are the signed distances to the point from two fixed perpendicular directed lines, measured in the same unit of length.
3 0
4 years ago
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Which describes the correlation shown in the scatterplot?
Nat2105 [25]

Answer:

It shows how much variable is affected by one another.

Step-by-step explanation:

7 0
3 years ago
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