All of the angles add up to 180 degrees, so take the two angles already present and add them, then subtract the sum from 180. Hope this helps!
Solve using system of equations!
Let y=total amount of money and x=hours of overtime.
mall: y=400+15x
movies: y=360+20x
Solve! Set the equations equal to each other to find x.
400+15x=360+20x
40=5x
x=8
After 8 hours of overtime the movies would pay her more.
Answer:
![Sales\:\:Price=List\:\:Price-Discount](https://tex.z-dn.net/?f=Sales%5C%3A%5C%3APrice%3DList%5C%3A%5C%3APrice-Discount)
- Sales price= $
List price=L Discount![=19.5\%\:of\:L=0.195L](https://tex.z-dn.net/?f=%3D19.5%5C%25%5C%3Aof%5C%3AL%3D0.195L)
![1167.25=L-0.195L](https://tex.z-dn.net/?f=1167.25%3DL-0.195L)
Step-by-step explanation:
The percentage discount is ![19.5\%](https://tex.z-dn.net/?f=19.5%5C%25)
The discount is always given on the list price.
![Sales\:\:Price=List\:\:Price-Discount](https://tex.z-dn.net/?f=Sales%5C%3A%5C%3APrice%3DList%5C%3A%5C%3APrice-Discount)
Let the list price be L, then
List price=L
Sales price= $![1167.25](https://tex.z-dn.net/?f=1167.25)
Discount![=19.5\%\:of\:L=0.195L](https://tex.z-dn.net/?f=%3D19.5%5C%25%5C%3Aof%5C%3AL%3D0.195L)
We substitute into the equation to get:
![1167.25=L-0.195L](https://tex.z-dn.net/?f=1167.25%3DL-0.195L)
![1167.25=0.805L](https://tex.z-dn.net/?f=1167.25%3D0.805L)
Divide both sides by 0.805
![\frac{1167.25}{0.805}=L](https://tex.z-dn.net/?f=%5Cfrac%7B1167.25%7D%7B0.805%7D%3DL)
![1450=L](https://tex.z-dn.net/?f=1450%3DL)
The list price of the swimming pool is $1450
Answer:
15 cause DC and CF are the same lenght