Math is numbers,period.no letters,no symbols.
2006-11-25 11:41:45 · 14 answers · asked by Anonymous in Science & Mathematics ➔ Other - Science
You write: "Math is numbers,period.no letters,no symbols." That means that basic algebra is "not math", and so you will forever be stuck in 6th-grade arithmetic.
That is like a 2nd grader saying "math is addition and subtraction, no multiplication".
If you ever want to progress in math, don't start insisting you know more than anybody else what "math" is or is not.
Math *is* the use of symbols. When you write "17" that is using two symbols to represent a number. You could also write "XVII" as another set of symbols to express the same number. Or "10+7", or "(2*9)-1". All symbols.
When you start using letters as symbolic *placeholders* for numbers, then you've moved up beyond 6th-grade arithmetic and can start using math for more interesting things.
2006-11-25 15:30:00 · answer #1 · answered by secretsauce 7 · 1⤊ 0⤋
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2016-10-17 13:18:15 · answer #2 · answered by ? 4 · 0⤊ 0⤋
Actually a number is whatever symbol you attribute to a numeric value. If you go beyond our normal base 10 number system, there are other systems like binary (0 and 1) and hexadecimal (0-9 and A-f).
Also, in algebra and higher, and in physics and other sciences, you will see letters all the time, either universal constants like pi, R, and Boltzman's constant (kB), or variables (V for volume, v for velocity, etc.)
2006-11-25 12:36:27 · answer #3 · answered by jellybeanchick 7 · 0⤊ 0⤋
Um, sure you can. Take the commutative property of addition.
A+B = B+A. That means that works for all numbers A & B.
I assume you just hate algebra, and want people to say it doesn't make sense. Well it does, so live with it.
Oh and if there are no symbols, what is the point? 1+1 = 2 would be way harder to understand if it looked like 112.
2006-11-25 11:45:57 · answer #4 · answered by Edgar Greenberg 5 · 1⤊ 0⤋
Not true. Ok, here's an example. The sum of a number and twice that number is equal to eight times another number plus 24. How would you solve that equation without a substitute (aka a letter) to take place of the numbers?
2006-11-25 11:45:00 · answer #5 · answered by Anonymous · 1⤊ 1⤋
the question "what is A + B" probably came after an equation more complicated but similar to: "4B = 16 , 3+A = 12 , what is A+B"
in any case yes, letters do make sense in mathematics. it is all relative to the equation that you're finding the answers to. in any case - I'd be glad to help you understand any questions you were having difficulty with... it's just a matter of "getting it" - it's harder for some people to "get" mathematics - perfectly normal, no worries!
2006-11-29 01:18:58 · answer #6 · answered by YourBrownEyedGirl 2 · 0⤊ 0⤋
A lot of letters have a universally or worldwide accepted value.
pi equals about 3.14
e=2.718
the imaginary number i = square root of -1
And letters can be used to figure out a number that is unknown.
2006-11-25 11:46:53 · answer #7 · answered by kevin 2 · 1⤊ 0⤋
Think of it like the actual number is being coy and wearing a letter mask. Ta-Da! Algebra!
2006-11-25 14:51:43 · answer #8 · answered by moronreaper 2 · 0⤊ 0⤋
Letters are called variables. they can represent any number.
5 X y = 20
20 / 5 = 4
y = 4
Variables are mainly used in algebra and calculus.
2006-11-25 11:51:44 · answer #9 · answered by Kevin H 7 · 0⤊ 0⤋
Letters are used as variables and variables are used to represent a number
2006-11-25 12:07:49 · answer #10 · answered by V kid 2 · 0⤊ 0⤋