Answer:
The area of shaded sector
Formula A = (θ / 360°) × πr²
θ=360°-140°=220°
r=18yd
We have A=(220/360)×3.14×(18)²
=621.72yd²
Area of sector is621.72yd².
The correct statement is "The Difference of Z and Y must be 2x."
A + c = 3806....a = 3806 - c
19a + 9.5c = 55157
19(3806 - c) + 9.5c = 55157
72314 - 19c + 9.5c = 55157
-19c + 9.5c = 55157 - 72314
-9.5c = -17157
c = -17157/-9.5
c = 1806 <== # of children
and there were 2000 adults
