Problema Solution
To avoid the bends, a diver should ascend no faster than 30 feet per minute. Write and graph an inequality showing the relationship between the depth of a diver and the time required to ascend to the surface.
Answer provided by our tutors
let
v = the average speed of descending
t = the time
d = the distance the diver is passing
we know
v = d/t
we also know that v <= 30 this we have:
d/t <= 30
thus we have the following inequality for the distance that the diver will pass:
d <= 30t
since the diver is ascending towards the surface the dept is descending
let D denote the starting dept then we can write the following inequality for the dept of the diver:
y = D - 30t