Question

A 500ml vinegar bottle is filled at 20°C, a small space in the cylindrical neck with diameter of 25mm and height 2cm is left empty as shown in the following illustration. If the bottle temperature is raised to 30°C, what is the new height of the empty space in the bottle's neck?

Answer 1

Explanation:

How to calculate percentage difference with negative numbers

Determine the negative values you're using.

Calculate the difference between the two negative values.

Calculate the average of the negative values.

Divide by the average.

Convert to a percentage.

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