Ratios are used to show how things are shared. For example, the necklace in the image below has a pattern of two red beads for every three yellow beads. The ratio of red beads to yellow beads is \(2:3 ...

An algebraic equation contains one or more letters in it. Each letter in the equation is called a variable. A variable can change in value. We guess at different values for each letter until our ...

Algebra is a branch of mathematics dealing with symbols and the rules for manipulating those symbols. In elementary algebra, those symbols (today written as Latin and Greek letters) represent ...