If Sally can paint a house in 4 hours, and John can paint th...
If Sally can paint a house in 4 hours, and John can paint th...
Sally can complete one house in four hours:
##(S_(hour))/(house) = 4##
##(house)/(S_(hour))= 1/4##
John can complete one house in six hours:
##(J_(hour))/(house) = 6##
##(house)/(J_(hour))= 1/6##
We w...
