Because scientist all over the world uses the metric system. Say if a American scientist send his data to I don't know. Let's say Japan then they could understand it better then other systems of measurements. Because most of the sciencetist use the metric system. But this is just a reason for science. I'm sure theirs even more simpler reasons out there.
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Because the Hindu-Arabic numeral system contains a zero symbol for positional place value purposes making calculations a a lot easier whereas the Roman numeral system does not have a zero symbol in it thus leading to confusion when calculating.
They are easier to use then the Roman numerals. And the Roman number system did not contain a zero. This made it difficult for them to develop many mathematical concepts.
The Hindu-Arabic numeral system (the numbers that we use today:0,1,2,3,4,5,6,7,8,9) replaced the Roman numeral system for calculating because it contained a 0 figure which made calculating a far lot easier than with Roman numerals.
so we can measure your head ================ Because it's easier to use. Every unit is divisible by 10. It's designed for used with the decimal point. The last I heard, there are only 3 countries (U.S., Liberia, and Burma) in the world that don't use the Metric system. It is used exclusively in science because of the fact it is easier to use. Even the U.S. uses the metric system in science and medicine.
advanced algebra is hard simple algabra is easy