Question

a charity gala is held in a hotel ballroom each year. the cost is $150 for the ballroom and an additional $22.50 for each attendee. write an equation showing how the cost of the gala, y, depends on the number of attendees, x. do not include dollar signs in the equation. y =

Explanation:

Step1: Identify fixed - cost

The fixed - cost for the ballroom is 150.

Step2: Identify variable - cost

The cost per attendee is 22.50, and if the number of attendees is $x$, the variable - cost is $22.5x$.

Step3: Form the equation

The total cost $y$ is the sum of the fixed - cost and the variable - cost. So, $y=150 + 22.5x$.

Answer:

$y = 150+22.5x$