Question

Brianna and 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?

a. -3 > 300

b. x > 300

c. 3 + x > 300

d. x + 3x > 300

Answer 1

The correct inequality to determine the amount of money Kelci has raised is x > 75.

Step-by-step explanation:

To determine the amount of money Kelci has raised, we can let x represent the amount of money Kelci has raised. Since Brianna has raised 3 times more money than Kelci, we can say that Brianna has raised 3x. The total amount of money they have raised together is more than $300, so we can write the inequality as:

x + 3x > 300.

Simplifying this inequality, we get:

4x > 300.

To isolate x, we divide both sides of the inequality by 4:

x > 75.

Therefore, the correct inequality to determine the amount of money Kelci has raised is x > 75.