Sophie uses a scale to weigh a large stone that she found. Then, she weighs a handful of smaller rocks that are 2 pounds each. The equation y = 2x + z describes the weights of the stone and rocks ( in pounds). What does the variable z represent in this equation.

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Now we have been told from the question that handful of smaller rocks that are 2 pounds each. This means that the x must then refer to the weight of the rocks.

An equation must involve variables, the variables in an equation are meant to explain some of the things that the equation is meant to find or solve.

Then if we have established that the x must refers to the weight of the rocks. It is now reasonable to say that z in pounds must be the weight of the stone.

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Sophie uses a scale to weigh a large stone that she found. Then, she weighs a handful of smaller rocks that are 2 pounds each. The equation y = 2x + z describes the weights of the stone and rocks ( in pounds). What does the variable z represent in this equation. Please help me with this question

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What is the meaning of z?

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Sophie uses a scale to weigh a large stone that she found. Then, she weighs a handful of smaller rocks that are 2 pounds each. The equation y = 2x + z describes the weights of the stone and rocks ( in pounds). What does the variable z represent in this equation.

Please help me with this question