Step-by-step explanation:
The formula the amusement parc use is 100y-39000=55(x-800)
The slope intercept form of a function is wriiten generally as:
y = mx+c
- m is a slope
- c is a constant and represents the y-intercept
- x is a variable
- y is the input of the function
Let's rewrite our equation in the precedent form
- 100y-39000 = 55(x-800)
- 100y -39000 = 55x-44000 add 39000 in both sides
- 100y-39000+39000 = 55x-44000+39000
- 100y = 55x-5000 divide both sides by 100
- y = 0.55x-50
The slope intercept form of this equation is:
y= 0.55x-50
It these triangles are similar, then the sides of the triangles are in proportion:
<em>cross multiply</em>
<em>use distributive property</em>
<em>subtract 10y from both sides</em>
<em>divide both sides by 5</em>
![\boxed{y=8}](https://tex.z-dn.net/?f=%5Cboxed%7By%3D8%7D)
<em>cross multiply</em>
![8x=(4)(6)](https://tex.z-dn.net/?f=8x%3D%284%29%286%29)
<em>divide both sides by 8</em>
![\boxed{x=3}](https://tex.z-dn.net/?f=%5Cboxed%7Bx%3D3%7D)
Ron would have to pay his broker $400 because 1.25 percent of 32,000 is 400
Answer:
D
Step-by-step explanation: