In this video, we will be learning how to declare variables in word problems. After you finish this lesson, view all of our Algebra 1 lessons and practice problems.

Examples of Real Numbers (Including Rational vs. Irrational Numbers)

Example 1

3.5

3.5 is rational, because it can be written as the ratio \dfrac{7}{2}

Example 2

3.605551275

3.605551275 is irrational because it shows that the number is non-terminating and also there is no repeating pattern.