Question

n=log (-1/2)x/log 0.85

Answer 1

Can i cancel out logs?

Answer 2

since they are like terms

Answer 3

\[n=\frac{ \log 0.5x }{ \log 0.85 }\]

Answer 4

no, you cannot cancel the logs.
what are you supposed to do with this equation ?

Answer 5

The number of years, n, for a piece of machinery to depreciate to a known salvage value can be found using the formula \[n=\frac{ \log s-\log i }{ \log (1-d) }\] where s is the salvage value of the machinery, i is its initial value, and d is the annual rate of depreciation.
b) How many years will it take for a piece of machinery to loose half of its value if the annual rate of depreciation is 15%.