(2x-15) + 11x = 180
Combine your like terms in get
13x - 15 = 180
Add 15 on both sides
13x - 15 = 180
+15 + 15
13x = 195
Divide each side by 13 and get
x = 15
6/8, 3/4
each student have ~3/4 of a cake slice
Answer:
17
Step-by-step explanation:

The equation of a circle is represented as :

where,
- "h" represents x - coordinate of the center of circle
- "k" represents y - coordinate of the center of circle
- " r " represents Radius of the given circle
So, from above equation we get:
Therefore, Radius of the given circle measures 6 units.

Wait for area, wouldn't you just times 13 and 5 and get 65 and then times 23?