# How do you write an algebraic expression for the phrase "thirty divided by a number"?

Mar 2, 2018

$\frac{30}{x}$

#### Explanation:

Let's call our number $x .$

When converting words into algebraic expressions, "a number" should be your cue to introduce an unknown variable (generally denoted by $x$), unless we're told exactly what that number is.

Thirty divided by a number is just thirty divided by $x .$

$\frac{30}{x}$