Raising e to both sides cancels out the natural logarithm on the left side and we have our exponential form. This works with other bases (recall that the natural logarithm, ln, has base e)
. Rates: Ryan: 1 hole per 5 hours Castel: 1 hole per 6 hours . Let x = time if working together then x(1/5 + 1/6) = 1 x(6 + 5) = 30 11x = 30 x = 30/11 x = 2.7273 hours or x = 2 hours and 44 minutes
