Question

The largest jaw breaker in a store is spherical with a radius of 2 in, and sells for $4.00. A

store wants to make a 6 in. radius jaw breaker. How much should they charge for this
foot long jaw breaker?

Answer 1

$36

Explanation:

1. Determine the surface area of the largest jaw breaker

Surface area of a sphere = 4πr²

4 x 3.14 x 2² = 50.24in²

2. Determine the surface area of the new jaw breaker

4 x 3.14 x 6² = 452.16 in²

3. Determine the cost per area

4/ 50.24

4. Determine the price for the new jaw breaker

4/ 50.24 x 452.16 = $36