math
posted by jasmine20 .
Can someone correct this for me please or help me out....
Why are variables useful in algebra?
My answer:
Variables are useful in algebra because they detemine an answer that anyone is trying to get to.
Variables can represent a single number or a whole subequation. they make advanced math possible. You can call "the speed of the car" A, for example. It is much better than writing it all out every time. the higher the math gets the more important the use of variables becomes.
Thank you
Respond to this Question
Similar Questions

MATH,ALGEBRA
My questions are: why are variables useful in algebra? 
Algebra
Why are variables useful in algebra? I feel the use of variables make it difficult for many people to understand because it is subconcious that math is numbers, not letters.... Thank you! By using a variable, one may make use of a 
Statistics
I neep help on two questions! A condition that occurs in multiple regression analysis if the independent variables are themselves correlated is known as: 1. autocorrelation 2. stepwise regression 3. multicorrelation 4. multicollinearity … 
8th Grade Algebra: Answer Check
Find the length of the 3rd side of each right triangle. 1. 8^2+15^2=c^2 Answer: c=17 2. 5^2+b^2=13^2 Answer: b=12 3. 9^2+13^2=c^2 Answer: c~15.81 Simplify. Assume that all variables are nonnegative. { this means square root 4. {12 … 
Math
Hi there I need help with the restrictions on the variables of this question: Simplify. State any restrictions on the variables. log(x^2+7x+12)/log(x^29) So my answer is: log(x+4/x3) which is correct. Now for the restrictions, I … 
Algebra
3a 2z 5m 2k 5 6 I am trying this one but am totally lost. You gave the answer to one earlier. If I am in need of the value of the variables z Is this answer z=2 
Algebra
I was given this problem to solve and no matter what order I multiply the variables I don't get the right answer. 27xy, when x=12.7 and y=100.4 the answer is 34,427.16 I cannot figure out the way to achieve this answer. I find problems … 
Algebra II
Please help! I am stuck on this one. Need to simplify the expression. Assuming all variables are real numbers. ∛(27(x+2)^3) my answer =3x+6 not sure is this is correct. 
Science
There can be several controlled variables. If an experiment is to be useful, only one variable at a time can be manipulated intentionally. All other variables must be controlled throughout all parts of the experiment. If more than … 
physics
What is the average useful power output of a person who does 5.50×106 J of useful work in 6.50 h?