Because it's based on the number ten! Decem is the Latin word for ten.
The following words are also derived from the same Latin origin:
decade meaning 10 years,
December used to be the tenth month in the old Roman calendar
decimetre - there are 10 dm in a metre
Yes.
The metric system
The metric system is based on the number 10.
the metric system
Acre is an imperial measurment. Hectacre would be an analogous metric measurment.
Decimal number system
Units with divisions that are powers of ten are called metric units. This system of measurement makes it easier to convert between different units by simply moving the decimal point. Examples include meters, grams, and liters.
does international system of units mean a version of the metric system used by modern scientists
The SI system, also called the Metric System.
The metric system is mostly a decimal system of measurement.
ounces is one of them, so it cc or ml if you use the metric system.
metric system