Answer:
The area of the wheel cheese is 63.62 inches²
The cost per square inch is $0.29
Explanation:
* Lets explain how to solve the problem
- One wheel of cheese has a diameter of 9 inches
∵ The wheel is shaped a circle
∵ The diameter of the wheel is 9 inches
- The radius of the circle is half its diameter
∵ The radius of the wheel = 1/2 its diameter
∴ The radius of the wheel = 1/2 (9) = 4.5 inches
- The area of a circle = πr²
∴ The area of the wheel cheese = π(4.5)² = 63.61725124 inches²
* The area of the wheel cheese is 63.62 inches²
- The 9-inch wheel of cheese costs $18.60
∵ The area of the wheel cheese is 63.62 inches²
∵ It cost is $18.60
- To find the cost per square inch divide the cost of the wheel
by its area
∴ The cost per square inch = 18.60 ÷ 63.62 = 0.29
∴ The cost per square inch is $0.29