318.50 divided by 100% and x30 = 95.55$ it's discount
318.50-95.55=222.95$ is their total bill after discount
Answer:
<h2><u>Supplementary</u></h2><h2><u>x = 34</u></h2>
Explanation:
- Supplementary angles: Angles that measure up to 180°
- Write an equation to find x
4x + 10 + x = 180
4x + x + 10 = 180
5x + 10 = 180
- Subtract 10 from both sides
5x + 10 - 10 = 180 - 10
5x = 170
5x / 5 = 170 / 5
x = 34
