Answer:
The value of y for given log function is 8 .
Explanation:
Given as :
The log function is Log 5 + Log y = Log 40
Or, Log y = Log 40 - Log 5 .........1
∵ From the Log property
Log m - Log n = Log

So, Log 40 - Log 5 = Log

Or, Log 40 - Log 5 = Log 8 .........2
Now, From eq 1 and 2
Log y = Log 8
∴ y = 8
So, The value of y = 8
Hence, The value of y for given log function is 8 . Answer