### Home > CALC > Chapter 7 > Lesson 7.2.1 > Problem 7-61

7-61.

Sam the snowman has a spherical head that is melting at a rate of 12 in^{3} per hour. Assume that as it melts, it remains spherical. Find the radius of Sam's head when the radius is changing at 0.25 inches per hour. Homework Help ✎

How can you construct an equation that describes how the volume of Sam's head is changing over time?

*r* ≈ 1.954 _____

Be mindful of units.