Alex and Amber must weed their neighbor's garden. It takes Alex 1 hour to weed the garden by himself, and it takes Amber 3 hours to weed it alone. How long will it take Alex and Amber to weed the garden if they work together?
i have to use this:

w = rt,

where w represents the work to be done, r represents the rate, and t represents the time it takes to complete the work.

Help??? :o

Question

Alex and Amber must weed their neighbor's garden. It takes Alex 1 hour to weed the garden by himself, and it takes Amber 3 hours to weed it alone. How long will it take Alex and Amber to weed the garden if they work together? 
i have to use this: 

w = rt,

where w represents the work to be done, r represents the rate, and t represents the time it takes to complete the work.

Help??? :o

anonymous · Answer

Together:
1/ T = 1/1  + 1/ 3

anonymous · Answer

that isn't in the w=rt form though???