Adult: $5, qty x children: $2, qty y total: $610, qty 200
Cost: 5x + 2y = 610 Quantity: x + y = 200
Using elimination method to solve the system of equations: 1(5x + 2y = 610) → 5x + 2y = 610 -2( x + y = 200) → -2x - 2y = -400 Add both equations: 3x + 0 = 210 Divide both sides by 3: x = 70
Substitute "x = 70" into either the Cost or Quantity equation: Quantity: x + y = 200 → 70 + y = 200 → y = 130
Adult tickets sold = 70 Children tickets sold = 130
We know that <span>Since a circle is 360 degrees, then 360</span>°-----------> 100% <span>x </span>°----------> <span>15% </span>x=15*360/100-----> x=54°
