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Mila [183]
3 years ago
11

Valuable ore deposits and gem crystals are often associated with _____. a. oceans b.oil deposits c. thin crustal areas d. igneou

s intrusions
SAT
1 answer:
Nata [24]3 years ago
3 0
D igneous intrusions is because it is the valuable 

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Critically discuss the teachers attibute ,values and attitudesin leading the school
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2 years ago
Suppose you got 246 marks in exam. These are 2% more than a friend of you, who got 80% marks in the same exam. What are the tota
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6 0
4 years ago
Un camión traslada 12 vehículos. Algunos son autos y otros son camionetas. Cada auto tiene una masa de 2 toneladas y cada camion
bagirrra123 [75]

Encontrando y resolviendo un sistema de ecuaciones, veremos que hay 9 camionetas y 3 autos.

Sabemos que hay 12 vehículos en el camión.

Definamos:

  • a = número de autos
  • c = número de camionetas.

tal que a + c = 12

La masa total será:

a*2 ton + c*3 ton

Y sabemos que el camión lleva 33 toneladas, entonces tenemos:

a*2 ton + c*3 ton = 33 ton

Así encontramos el sistema de ecuaciones:

a + c = 12

a*2 ton + c*3 ton = 33 ton

Para resolverlo, primero aislamos una de las variables en una de las ecuaciones, aislemos a en la primera:

a = 12 - c

Ahora reemplazamos esto en la otra:

(12 - c)*2 ton + c*3 ton = 33 ton

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Entonces los 3 vehículos restantes son autos.

Hay 9 camionetas y 3 autos.

Sí quieres aprender más, puedes leer:

brainly.com/question/17174746

6 0
3 years ago
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