Difference between revisions of "Variable"
(→Definition: i is not usually used as a variable, p and q are) |
Mysmartmouth (talk | contribs) (→Examples) |
||
| Line 7: | Line 7: | ||
== Examples == | == Examples == | ||
| − | What | + | What number, when added to 7, gives a sum of 10? |
Write an equation that uses a '''variable''' to represent the part that is unknown. | Write an equation that uses a '''variable''' to represent the part that is unknown. | ||
<math>\displaystyle7+n=10</math> | <math>\displaystyle7+n=10</math> | ||
Revision as of 13:20, 8 July 2006
Definition
A variable does not have a set value. Its value can change, and a variable is used to represent unknowns in equations.
Any symbol may be used as a variable, but the most common variables are x, y, z, n, a, b, c, p, and q.
Examples
What number, when added to 7, gives a sum of 10?
Write an equation that uses a variable to represent the part that is unknown.
