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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.



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Answer:

The weight, in pounds, of the large stone.

Step-by-step explanation:

She uses a scale to weigh a large stone

She weighs smaller rocks that are 2 pounds each

We know that the 2 in the equation of  y = 2x + z  means the smaller rocks.

She only weighs a single large stone that she found.

The variable z most likely represents the weight (in pounds) of the large stone.

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