Final answer:
The speed of ascent during a deco slide does not apply. The speed of descent during a deco slide can be calculated based on various factors.
Step-by-step explanation:
The speed at which you ascend during a deco slide can vary depending on factors such as the angle of the slide and the surface of the slide. In general, a deco slide refers to a controlled descent, so if you are ascending during a deco slide, it means you are moving upward instead of downward. As such, the concept of feet per minute ascending doesn't apply to a deco slide. If you meant to ask about the speed of descent during a deco slide, you can calculate it based on the angle of the slide and other relevant factors.