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Valentin [98]
3 years ago
10

Can you help me with this question i will give 40 points?

Mathematics
1 answer:
liberstina [14]3 years ago
3 0
I think 21 or 22 not sure
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Please help and give me an explanation I don’t understand or know if it’s correct
andrezito [222]
Hello :) we got similar answers but i believe you made a few distributing mistakes! hopefully my work makes sense, if not i’ll totally try to explain more

p.s i might be too late whoops

p.p.s i’m in a higher grade but i haven’t done this kinda math in a longgg time haha so if you think i did something wrong trust your gut ✌️

7 0
3 years ago
For how many positive three-digit integers is the product of their three digits 90?
Masteriza [31]
So just find the factors of 90
90=2 times 3 times 3 times 5
so the factors could be
2,3,15
2,9,5
6,3,5
10,3,3
 there are 4our
4 0
4 years ago
La barbería El Caleño, tiene en promedio 120 clientes a la semana a
Luba_88 [7]

Queremos maximizar el precio de tal forma que los ingresos no disminuyan.

Ese maximo precio es: $14,040.6

Sabemos que actualmente el precio es:

p = $6,000

El número de clientes es:

C = 120

Actualmente los ingresos son el producto de esos dos números, es decir:

ingresos = $6,000*120 = $720,000

Ahora sabemos que por cada incremento de $700 en el precio, el número de clientes decrece en 10.

Entonces podemos escribir el número de clientes como una ecuación lineal.

C(p) = a*p + b

tal que tenemos dos puntos en esa linea:

($6,000, 120)

($6,700, 110)

La pendiente es:

a = \frac{110 - 120}{\$6,700 - \$6,000} = \frac{-10}{\$ 700}

Entonces tenemos:

C(p) = (-10/$700)*p + b

Sabemos que:

C($6,000) = 120 = (-10/$700)*$6,000 + b

                     120 = -85.71 + b

                     120 + 85.71 = b =

Entonces la ecuación lineal es:

C(p) = (-10/$700)*p + 205.71

Los ingresos serán dados por:

ingresos = C(p)*p = (-10/$700)*p^2 + 205.71*p

Y queremos maximizar p de tal forma que esto sea igual a lo que obtuvimos antes:

(-10/$700)*p^2 + 205.71*p = $720,000

Entonces debemos resolver la ecuación cuadratica:

(-10/$700)*p^2 + 205.71*p - $720,000 = 0.

Las soluciones son dadas por la formula de Bhaskara.

p = \frac{-205.71 \pm \sqrt{(205.71)^2 - 4*(-10/\$ 700)*\$ 720,000} }{2*(-10/\$ 700)} \\\\p = \frac{-205.71 \pm 195.45}{(-20/\$ 700)}

La solución de maximo valor es:

p = (-205.71 - 195.45)/(-20/$700) = $14,040.6

Sí quieres aprender más, puedes leer.

brainly.com/question/8926135

7 0
3 years ago
From the set {2, 17, 19}, use substitution to determine which value of x makes the equation true.
frutty [35]

54x = 864

A. x = 17 → 54(17) = 918 ≠ 864

B. x = 2 → 54(2) = 108 ≠ 864

C. x = 19 → 54(19) = 1,026 ≠ 864

<h3>Answer: D. none of these</h3>

Solution

54x = 864     <em>divide both sides by 54</em>

x = 16

5 0
3 years ago
I need help:
Dovator [93]

Answer:

3(y-4) =2y+6

3y - 12 = 2y +6

y = 18

so length is 42 in.

width is 14 in.

6 0
3 years ago
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