because they want to use it so easy why do you go to another website in this website you can see your question ok so easy ask me a GOOD question and i answer you GOOD too☺☻♥♦♣♠•◘○
The only reason they're "customary" around here is because we continue to use them.
Once you get anywhere outside the US, the inch, yard, mile, and pound are no longer customary; they're just plain weird, and everybody there is asking the same question.
Informal units of measure include any type of measurement representation a person uses. A common informal unit of measurement is hand span (or hands) because hands are visual and measurements can be understood across all languages and cultures.
It would make no sense to measure your height in seconds, or to talk of your age in kilograms! Different characteristics need different measures.
Different units are required so at to measure things on different scales accurately. You would not want to measure the distance from the earth to the sun in millimetres! The answer is approximately 150,000,000,000,000 mm. Conversely, you would not want to measure your height in kilometres: 0.0018 km approx, even less the thickness of a sheet of paper. You need a small unit to get an accurate result for a short distance and a large unit for a long distance.
It would make no sense to measure your height in seconds, or to talk of your age in kilograms! Different characteristics need different measures.
Different units are required so at to measure things on different scales accurately. You would not want to measure the distance from the earth to the sun in millimetres! The answer is approximately 150,000,000,000,000 mm. Conversely, you would not want to measure your height in kilometres: 0.0018 km approx, even less the thickness of a sheet of paper. You need a small unit to get an accurate result for a short distance and a large unit for a long distance.
It would make no sense to measure your height in seconds, or to talk of your age in kilograms! Different characteristics need different measures.
Different units are required so at to measure things on different scales accurately. You would not want to measure the distance from the earth to the sun in millimetres! The answer is approximately 150,000,000,000,000 mm. Conversely, you would not want to measure your height in kilometres: 0.0018 km approx, even less the thickness of a sheet of paper. You need a small unit to get an accurate result for a short distance and a large unit for a long distance.
It would make no sense to measure your height in seconds, or to talk of your age in kilograms! Different characteristics need different measures.
Different units are required so at to measure things on different scales accurately. You would not want to measure the distance from the earth to the sun in millimetres! The answer is approximately 150,000,000,000,000 mm. Conversely, you would not want to measure your height in kilometres: 0.0018 km approx, even less the thickness of a sheet of paper. You need a small unit to get an accurate result for a short distance and a large unit for a long distance.
It would make no sense to measure your height in seconds, or to talk of your age in kilograms! Different characteristics need different measures.
Different units are required so at to measure things on different scales accurately. You would not want to measure the distance from the earth to the sun in millimetres! The answer is approximately 150,000,000,000,000 mm. Conversely, you would not want to measure your height in kilometres: 0.0018 km approx, even less the thickness of a sheet of paper. You need a small unit to get an accurate result for a short distance and a large unit for a long distance.
i dont know i hate math!!!
Well, it is because early men did not need to make accurate comparisons. They could tell by looking whether a place was large enough for a family to live in.
Because it is much more sensible than the older systems.
Because it is too hard for American teachers to understand SI units and teach them to children. The US has agreed to use SI units almost 20 years ago and is still struggling with it.
i will sit on the bench in recees
The US is one of the 3 remaining countries that still use Imperial (old British) units to measure distance. They therefore uses feet, inches and miles. The rest of the world uses the international standard decimal units relating to the Metre.
Of all countries in the world that has an officially established system of measurement, only Burma/Myanmar, Liberia and the United States do not use the International System of Units (SI). The United States use Imperial units and U.S customary units. That is not to say that SI is not in use in the U.S. The customary units are nowadays defined from SI units. And the National Institute of Standards and Technology uses it. To answer your question: the metrication of the United States is gradual and there is no fixed date where you can say that the US adopted SI. http://en.wikipedia.org/wiki/Metrication_in_the_United_States
No, Foot belongs to the Imperial and US customary units (according to Wikipedia)
Lots of different ways. For example, the legal definition of the U.S. standard units (foot, gallon, pound, etc.) are in terms of SI units.
One US gallon of producer's milk (not skimmed, semi-skimmed, homogenised etc), weighs 10.1 pounds-force in customary measure and 44.5 newton in metric measure.
The US has their own way of measuring things, I guess, and there really isn't an explanation for it.
Use a conversion factor
square feet
use a conversion factor.
Customary Units
Liter is used in the United States, but it is not one of the US customary units.
The customary units are ones we use everyday. metric units usually have the word meter on it. my teacher taught me meter metric no meter no metric.
Use a conversion factor
US customary units
You need to find the conversion factor for the units in question.
Ounces and feet
A "fathom" is a measure of units in the British Imperial System, later derived for use in the US Customary System. It is approximately two yards (or six feet), and is most commonly used in measuring nautical distances.