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Sholpan [36]
2 years ago
13

Whats The Answer Marking Brainliest, Please explain your answer:D..............................Please HELP!!!!

Mathematics
2 answers:
Kitty [74]2 years ago
4 0

Answer:

A

Step-by-step explanation:

goldfiish [28.3K]2 years ago
4 0

Answer:

a

Step-by-step explanation:

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3 years ago
You bought a car 5 years ago for $10,000. The car depreciates 12% a year. What is the car worth now?
Marianna [84]

Answer:

$4000

Step-by-step explanation:

12 x 5 = 60

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3 0
2 years ago
Bob wants to create two pens, as shown in the figure. One pen is for a garden and it needs a heavy duty fence to keep out the cr
sattari [20]
\bf \textit{the area of either pen is 2744, thus}\\\\&#10;A=xy\implies 2744=xy\implies \cfrac{2744}{x}=y

\bf \begin{array}{llll}&#10;\textit{perimeter of the garden pen}\\\\&#10;P=2(x+y)\\\\&#10;P=2\left( x+ \cfrac{2744}{x}\right)\\\\&#10;P=2x+\cfrac{5488}{x}\\&#10;----------\\&#10;&#10;\textit{cost of it}\\\\&#10;C=15\left( 2x+\cfrac{5488}{x} \right)\\\\&#10;C=30x+\cfrac{82320}{x}&#10;\end{array}\qquad &#10;\begin{array}{llll}&#10;\textit{perimeter of the dog pen}\\\\&#10;P=2x+y\\\\&#10;P=2x+\cfrac{2744}{x}\\&#10;----------\\&#10;\textit{cost of it}\\\\&#10;C=5\left( 2x+\cfrac{2744}{x} \right)\\\\&#10;C=10x+\cfrac{27440}{x}&#10;\end{array}

notice... the dog's pen perimeter, does not include the side that's bordering the garden's, since that side will use the heavy duty fence, instead of the light one

so, the sum of both of those costs, will be the C(x)

\bf C(x)=\left( 30x+\cfrac{82320}{x} \right)+\left( 10x+\cfrac{27440}{x} \right)&#10;\\\\\\&#10;C(x)=40x+\cfrac{109760}{x}

so, just take the derivative of it, and set it to 0 to find the extremas, and do a first-derivative test for any minimum

8 0
3 years ago
1. La asistencia a un juego de béisbol profesional fue de 4500 personas y el dinero
Elena-2011 [213]

Resolviendo un sistema de ecuaciones veremos que se vendieron 900 boletos de $15 y 3600 boletos de $10.

<h3> ¿Cuántos boletos de cada tipo se vendieron?</h3>

Primero definamos las variables:

  • x = número de bolteos de $10 vendidos.
  • y = número de bolteos de $15 vendidos.

Sabemos que se vendieron 4500 boletos, entonces:

x + y = 4500

Y se recaudo un total de $49,500, entonces:

x*$10 + y*$15 = $49,500

Entonces tenemos un sistema de ecuaciones:

Para resolver esto, primero debemos aislar una de las variables en la primer ecuación, voy a aislar x:

x = 4500 - y

Ahora reemplazamos esto en la otra ecuación:

(4,500 - y)*$10 + y*$15 = $49,500

Ahora debemos resolver estoy para y.

$45,000 - y*$10 + y*$15 = $49,500

y*$5 = $49,500 - $45,000 = $4,500

y = ( $4,500)/$5 = 900

Entonces:

x = 4500 - 900 = 3600

Se vendieron 900 boletos de $15 y 3600 boletos de $10.

Sí quieres aprender más sobre sistemas de ecuaciones:

brainly.com/question/13729904

#SPJ1

3 0
2 years ago
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