A variable is any letter or alphabet that is used to attain a specific number.

Math definition of variable. In math, the variable is generally denoted by alphabet x , y , z etc. Number of different tree species in a forest. 'knowledge, study, learning') is an area of knowledge that includes such topics as numbers (arithmetic and number theory), formulas and.

Generally, we use a single letter or alphabet to represent a. “x” here acts as a variable. For example, in the equation x + 2 = 5, the x is being used as a variable.

Variables such as some children in a household or the number of defective items in a box are discrete variables since. In algebra, a variable is usually a letter or other symbol that stands for a number or quantity that may vary. A variable is a quantity that can change with the context of a particular mathematical problem or with the context of an experiment.

Discrete variables (aka integer variables) counts of individual items or values. In the case of x +. H = number of hours spent on the internet per day.

A symbol that has a fixed numerical value is called a constant. An entity with no fixed value is called a variable. In x + 2 = 6, x is the variable.

You can use any of the english alphabets such as a, b, c, x,y, p, q in lower or upper case to represent a. Here are a few examples of variables: For example, x + 8 = 16;