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vesna_86 [32]
3 years ago
12

Solve for x (supplementary angle problem thing)

Mathematics
2 answers:
makvit [3.9K]3 years ago
4 0
It's a complimentary angle.

Complimentary angles both add up to 90 degrees, as you can also tell by the square with indicates a 90 degree angle.

Make (x + 54) + 5x = 90.

x + 54 + 5x = 90

Add like terms.

6x + 54 = 90

Subtract the 54.

6x = 36

Divide by 6.

x = 6
o-na [289]3 years ago
3 0
5x+x+54=90. They are complementary angles so they added up to 90 degrees. This simplifies to 6x=36, then simplifies more to x=6. So, x=6.
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Jack has $37 and saves $6.50 per week. Diane has $9 and saves $8.25 per week. Define a variable, then write and solve an equatio
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Answer:

Defining variable: x = per week

Equation: 37 + 6.5x = 9 + 8.25x

Answer: 16 weeks

Step-by-step explanation:

x = per week

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Diane:

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37 + 6.5x = 9 + 8.25x

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3 years ago
¿cuanto pesa cada uno de nuestros 3 personajes?
sergij07 [2.7K]

Resolviendo el sistema de ecuaciones veremos que:

  • niña = 23kg
  • niño = 28kg
  • perro = 18kg.

<h3>¿Como resolver el sistema de ecuaciones?</h3>

Aqui tenemos el sistema de ecuaciones:

Niña + niño = 51kg

Niño + perro = 46 kg

Niña + perro = 41kg

Para resolver esto, lo primero que debemos hacer es aislar una variable en una de las ecuaciones, por ejemplo, podriamos aislar "perro" en la tercera:

perro = 41kg - niña

Ahora reemplazamos eso en la segunda para obtener:

niño + (41kg - niña) = 46kg

niño - niña = 46kg - 41kg = 5kg

niño = niña + 5kg

Ahora logramos obtener la variable "niño" en terminos de la variable "niña". Podemos reemplazar esto en la primera ecuacion del sistema.

niña + niño = 51kg

niña + (niña + 5kg) = 51kg

2*niña = 51kg - 5kg = 46kg

niña = 46kg/2 = 23kg.

Ahora que sabemos esto, usamos las otras ecuaciones para encontrar el peso del niño y el perro:

niño = niña + 5kg = 23kg + 5kg = 28kg

perro = 41kg - niña = 41kg - 23kg = 18kg.

Sí quieres aprender más sobre sistemas de ecuaciones, puedes leer:

brainly.com/question/17174746

6 0
2 years ago
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