Decimal or Denary.
The SI (international system).
Metric
No it is not. It is the metric system invented by the French which based on powers of ten. And it is the Empirical system, not the English system.
A decimal system; but probable you think to metric system.
Yes.
The SI system is based on multiples (and divisions) of ten. There are seven base units, all others are derived from these.
Factor of ten
The metric system is used by scientists because it is based on factors of ten. This makes it easy to convert from one unit of measurement to another.
The metric system is used worldwide and is the standard system of measurement in most countries of the world. It is simple to use because it is based on units of ten.
The metric, or SI system of measurement is based on units which, in most cases, are related to larger or smaller units by multiples or factors of ten. The exception is time where the factors are 60.
The metric system
The English system is based on arbitrary numbers and measurements, such as 12, 36, and 5,280. The Metric system - every aspect of it - is based on even multiples of ten, both going upward, and going downward. Just ten. Nothing else.
The metric system of measurement is internationally recognized and is the standard for measurements within the scientific community . It is internationally recognized and used the world over. It is also easier and more intuitive in that it is based on divisions and multiples of ten.