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Furkat [3]
4 years ago
15

8+-3x=54 still need some help with this

Mathematics
1 answer:
Naya [18.7K]4 years ago
4 0

Subtract 8 from 54. ( -3x = 46 ) Divide -3 from 46. Your answer should be about -15.3

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zysi [14]

Answer:

yes I can

Step-by-step explanation:

5 0
3 years ago
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¿Cuál es el sistema de ecuaciones que permite obtener el precio por litro de los dos tipos de
vampirchik [111]

El sistema de ecuaciones que permite obtener el precio por litro de los dos tipos de gasolina es 8x + 10y = 302.12 y 12x + 12y = 400.08​ (opción D)

Una ecuación es una expresión matemática que se caracteriza por representar una igualdad entre dos miembros separados por el signo igual. La ecuaciones incluyen elementos conocidos e incógnitas relacionados mediante operaciones matemáticas.

De acuerdo a lo anterior la respuesta correcta es 8x + 10y = 302.12 y 12x + 12y = 400.08​. Por que estas ecuaciones expresan matemáticamente los datos que se tienen y las incógnitas con las letras <em>x</em> y <em>y</em>.

Por ejemplo, la primera expresa que 8 (litros) por el precio del galón de gasolina Magnum (<em>x</em>), más 10 (litros) por el precio del galón de gasolina Premium (<em>y</em>) es igual a 302.12, que fue el precio total que pagó Carlos por la gasolina.

La segunda ecuación expresa que 12 (litros) por el precio del galón de gasolina Magnum (<em>x</em>) más 12 (litros) por el precio del galón de gasolina Premium (<em>y</em>) es igual a 400.08, que fue el precio total que Raquel pagó por la gasolina.

Esta pregunta está incompleta porque faltan las opciones e información sobre la gasolina. A continuación está la información completa y las opciones.

Carlos compró 8L de gasolina Magnum y 10 litros de gasolina premium por 302.12

Raquel compró 12L de gasolina Premium y 12L de gasolina magnum por 400.08

A) 8x + 12y = 302.12

10x + 12y = 400.08

B) 8x + 12y = 400.08

10x + 12y = 302.12

C) 8x + 10y = 400.08

12x + 12y = 302.12

D) 8x + 10y = 302.12

12x + 12y = 400.08​

Aprenda más en: brainly.com/question/21880298

6 0
3 years ago
A company bought a piece of machinery for $16 200. In the first it depreciated 15%, and in the second year 10%. How much was it
Marysya12 [62]
I honestly don’t know good luck on your journey hope this helps
5 0
3 years ago
The sides of ∆ABC are 30 units, 40 units, and 60 units long. The corresponding sides of ∆XYZ are r times as long as the sides of
san4es73 [151]

Part a) Find the expression that gives the perimeter of ∆XYZ

we know that

Perimeter of triangle ABC is equal to

P=30+40+60\\ P=130\ units

In this problem ∆ABC and ∆XYZ are similar triangles

the scale factor is equal to r

so

scale\ factor=r \\ \\ scale\ factor=\frac{perimeter\ triangle\  XYZ}{perimeter\  triangle\  ABC}  \\ \\ perimeter\ triangle\  XYZ=perimeter\  triangle\  ABC*scale factor\\ \\ perimeter\ triangle\  XYZ=130*r

therefore

the answer Part a) is

The expression that gives the perimeter of ∆XYZ is 130*r\ units

Part b) Find the expression that gives the area of ∆XYZ

we know that

Area\ of\ triangle\ ABC=n\ units^{2}

scale\ factor=r \\ \\ scale\ factor^{2}=\frac{Area\ triangle\  XYZ}{Area\  triangle\  ABC}  \\ \\ Area\ triangle\  XYZ=Area\  triangle\  ABC*scale factor^{2}\\ \\ Area\ triangle\  XYZ=n*r^{2}\ units^{2}

therefore

the answer Part b) is

The expression that gives the Area of ∆XYZ is n*r^{2}\ units^{2}

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3 years ago
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Do 12.64 divided by 4. That is each person’s cost of pizza. Then add 0.95 to the cost of pizza. That is your total.
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3 years ago
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