Answer:

Step-by-step explanation:
<u>Step 1: Solve the system of equations</u>
<u />
<u />
Isolate
for 



Isolate
for 






<u>Step 2: Graph</u>
Instructions for graphing:



When done, it should look like this:
Answer:
y = -.4x+107
Here you go! Have a wonderful day!
Answer:
x = 20
4x = 80°
5x = 100°
Step-by-step explanation:
The given angles are supplementary so their sum is 180°
4x + 5x = 180
9x = 180 divide both sides by 9
x = 20
The value of the angle marked 4x = 4 × 20 = 80°
The value of the angle marked 5x = 5 × 20 = 100°
The multiplicative inverse of a number x is a number y such that their product xy is 1.
So, we want a number such that

Divide both sides by 10:
