In Exercises 23 to 40, solve each equation.
L21 - 2 To solve a related rates problem: 1. Identify the desired rate of change; assign variables to all related quantities. Determine what rate(s) are given at a particular instant in time and express using your variables. Draw a sketch if possible. 2. Write an equation (mathematical model)r nighe variables involved from step 1. 3. Diﬀerentiate the equation implicitly with respect to time. 4. Substitute known values and solve for the desired rate of change.