Question

I need urgent help on number 4 please!!! :: Fiona works N hours a month at a job earning X dollars pero hour. She also works P hours a month at a job earning Y dollars an hour. Each month , she earns an average of Z dollars an hour . This formula can be used to represent this situation.

Answer 1

(nx + py) / (x + y) = z, solve for p

nx + py = z(x + y)

py = z(x + y) - nx

py = zx + yz + nx

p = (zx + yz + nx) / y