Let x be the jug, for half-filled, y for the weight of the jug when empty.
∵ x + y = 2.6 kg
∵ x = 4 kg
∴ ⋅ 4 + y = 2.6 kg
∴ 2 + y =2.6 kg
∵ y = 2.6 - 2 = 0.6 kg
∴ The weight of the empty jug = 0.6 kg
What is the sum of −4x+1 and 6x−5 ? 10x + 6 2x−4 −2x+6 I don't know.
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