Question

In 2005, a Nevada silver mine exported 200 tons of silver. In 2008, as the silver supply became exhausted, it only exported 25 tons of silver. What is the rate of change of the mine’s silver output?

Answer 1

D:

Answer 2

Change of weight = (25-200)=-175tons
Duration = 2008-2008 = 3 years

rate of change is -175/3

Answer 3

Thank you! <3