A teacher describes a mathematical system that can be used to convert the weight of water to the mass of water. What is the teacher most likely describing?

Dimensional analysis uses relationships between units to convert a measurement from one form to another. For example, a conversion factor can relate water’s weight to its mass while canceling the original units and leaving the desired units. Fractions and scientific notation are ways to write numbers, and measuring tools collect measurements rather than perform the conversion.

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