x=15000(0.00625/1-(0.99378)^12t)
solve for dt/dx

You should start by getting the expression in the form of 't= (.. )' once u have reduced the expression , it is just normal diffrentiation wrt x. Try doing it.. u may need to use logarithms to get the '12 t' term to the base level.

No need to double post: https://www.askmehelpdesk.com/math-s...dx-414446.html