Question

Brianna and let kelci are raising money for a class field trip. Brianna has raised 3 times more money than kelci, but together they have raised more than $300. Which inequality can be used to determine the amount of money kelci has raised?

Answer 1

Let $x be the amount of money which Kelci has raised. Brianna has raised 3 times more money than kelci, then she has raised $3x. Totally both have aised $(x+3x)=$4x.

Since together they have raised more than $300, then 4x>300,

$x\ \textgreater \ \dfrac{300}{4}$.
Answer: the inequality  $x\ \textgreater \ \dfrac{300}{4}$ can be used to determine the amount of money kelci has raised