They are called relation symbols they tell how something relates to something else
greater than tells ou that the the result must be more than, but not eqal to that numberd so example, we have to have something that flys higher than that bridge (100ft) but it cannot fly 100 or else it will crash
less than tells you that you must be less than, but not euqal to. example this thing must be less than 7 feet tall to fit under the doorway, it cannot be 7 feet or else it wont fit
equal to is an exact amount, nothing more or less we have to have a screw that is this big, nothing more or less
less and greater than is nice since if you found a solution and you wanted to notate it, example if the naswer is any number less than 10, it would be nicer to write x<10 instead of listing all numbers less than 10 since they could get very close example 9.999999999 forever greater is the same, any number bigger than 30, you woul dhave to include 30.0000000001 and smaller which is hard, but with the x>30, it is easier
the equals just shows equality, this is equal to this, period
They are very useful because they can help many people understand which number is either bigger or smaller and also equal.
These symbols are found useful because they are used in many equations to determine weather a number needs to be subtracted or added, this means they helps you determine if you have to use subtraction or multiplication.
These are called Relation Symbols.
EXAMPLE BELOW :
20≥10+10≤20 , this means 10 + 10 = 20 which is greater than or equal to 20 ≥ __________________________________________________________
Keep in my that the alligator(,≥,≤,etc) loves to eat the bigger number , which looks like the = ∠20 , if it is small the gator doesn't want is , looks like this = 10∠. _____________________________________________________________
Those examples and reasoning's were my back up for my answer.
