Use the four-step procedure for solving variation problems given on page 445 to solve Exercises 21–36.The water temperature of the Pacific Ocean varies inversely as the water’s depth. At a depth of 1000 meters, the water temperature is 4.4° Celsius. What is the water temperature at a depth of 5000 meters?

Solving Variation Problems 1. Write an equation that models the given English statement. 2. Substitute the given pair of values into the equation in step 1 and find the value of k, the constant of variation. 3. Substitute the value of k into the equation in step 1. 4. Use the equation from step 3 to answer the problem's question.