Answer:
At 6 hours the cost is the same. At 10 hours of service Henry is cheaper.
Step-by-step explanation:
This is simple. Follow my lead!
First we must create an equation for George
He charges $90 initially and then $40 per hour
So George's equation is:
[tex]y = 40x + 90[/tex]
Now let's find Henry's equation!
He charges $120 initially and then $35 per hour
So Henry's equation is:
[tex]y = 35x + 120[/tex]
1) To find when they will be the same, just set them equal to each other and solve for x.
[tex]40x + 90 = 35x + 120 \\ - 35x \\ 5x + 90 = 120 \\ - 90 \\ 5x = 30 \\ \div 5 \\ x = 6[/tex]
This means that when x = 6 or at 6 hours in the cost is the same!
2) Just solve both equations with x = 10
[tex]y = 40(10) + 90 \\ y = 400 + 90 \\ y = 490[/tex]
At 10 hours George's service costs $490!
[tex]y = 35(10) + 120 \\ y = 350 + 120 \\ y = 470[/tex]
At 10 hours Henry's service costs $470!
$470 is less than $490 so that means Henry is more cheaper!
Yay! We did it!
Brainliest Appreciated! If you have questions please don't hesitate to comment.