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IrinaK [193]
3 years ago
12

Use Cramer's rule to solve 4x + 3y = 4, -3x - y = 7. Show your work.

Mathematics
1 answer:
nikklg [1K]3 years ago
3 0
The answer is shown in the picture because it ran afoul of Brainly's "bad word" detector.

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Al precio de p dólares por unidad, se venden x unidades de cierto artículo al mes en el mercado con p=50-0.5x ¿Cuántas unidades
Ray Of Light [21]

Answer:

Se debe vender un mínimo mensual de 40 artículos para tener un ingreso mínimo de 1.200 dólares.

Step-by-step explanation:

De acuerdo con el enunciado, x es la cantidad mínima de artículos a un precio de p. Además, los ingresos totales deben ser de un mínimo de 1200. En consecuencia, tenemos el siguiente sistema de ecuaciones:

x \cdot p = 1200 (1)

p = 50-0.5\cdot x (2)

Aplicando (2) en (1), tenemos la siguiente ecuación polinómica:

x\cdot (50-0.5\cdot x) = 1200

50\cdot x -0.5\cdot x^{2} = 1200

0.5\cdot x^{2}-50\cdot x +1200 = 0 (3)

Por la Fórmula de la Cuadrática tenemos las raíces del polinomio:

x_{1} = 60, x_{2} = 40

De acuerdo con el resultado anterior, se debe vender un mínimo mensual de 40 artículos para tener un ingreso mínimo de 1.200 dólares.

3 0
3 years ago
Im so confused. :/ Anyone?
ArbitrLikvidat [17]
First one = 9x3=27

Second one 12x9=108

3rd one = 3x4=12
 
Idk what that last one is
7 0
3 years ago
(5x-6)(x-1)>0.5×(2x)(x)5x²-5x-6x+6>x²5x²-5x-6x+6-x²>04x²-11x+6>0(x-2)(4x-3)what is x?
Aloiza [94]

Answer:

download Microsoft math solver app .

I am pretty sure that this app will help you to solve this question

3 0
2 years ago
From the table below create an equation.
Bond [772]

Answer:

Step-by-step explanation:

2,4 ,10,12,19,36.5,40

4 0
3 years ago
Is 0.6 greater or less than 0.60
lys-0071 [83]
It is the same. Even though you put a 0 in the end can't change the number
7 0
3 years ago
Read 2 more answers
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