Question

A window washing company charges $550 to clean 20 windows and $775 to clean 35

Answer 1

Answer:

The cost PER WINDOW  = $15

The flat fee charged by the company  = $250

Make an equation to represent this scenario. y=15x+250

Use your equation to determine the cost to clean 50 windows.

y=15x+250

y=15(50)+250

y=750+250

y=1,000

$1,000

How many windows could you have cleaned for $880?​

y=15x+250

880=15x+250

630=15x

42=x

42 Windows