Answer:
y = 15
Step-by-step explanation:
(6 (15) - 10) =
(90 - 10) =
80
(6 (15) + 10) =
(90 + 10) =
100 + 80 = 180
Therefore y is equal to 15
Hope It Helps...
From the shaded diagram, Raphael will need 3 of the 6 equal portions, or exactly 1/2 of the area of the circle. Given a radius of 12 ft, knowing that the area of any given circle is

, and knowing that the area of the fabric needs to be half of the total area, we can set up the equation for the area of the fabric

:

Simplifying, we find that the area of the fabric is exactly

ft.² Using the approximation of 3.14 for π, we get an area of approximately

ft² of fabric.
10 times 60 is 600 so the awnser 600