Una empresa envía tres cargamentos de 300 kg cada uno, para renovar el mobiliario de una escola. El primer cargamento contiene 15 mesas y 30 cillas, el segundo 25 mesas, el tercero 10 mesas y 20 cillas. ¿cuanto pesa una silla, una mesa y un armario?

step-by-step explanation:

c. (3,2,6) is the answer.

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a) y = -3x +2

b) y = 1/2x -6

these 2 can be combined into one equation.

-3x +2 = .5x -6

8 = 3.5x

x = 8 / 3.5 = 2.2857142857

y = -3 * (8 / 3.5) +2

y = (-24 / 3.5) + 2

y = -4.8571428571

step-by-step explanation: