SOLUTION: Marian can weed a garden in 3 hours. robin can weed a garden in 4 hours. how long will it take them to weed a garden if they work together

Question 446749: Marian can weed a garden in 3 hours. robin can weed a garden in 4 hours. how long will it take them to weed a garden if they work together
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Add their rates of working
Marion's rate:
Robin's rate:
If = the time if both work together,
Rate working together =

multiply both sides by

They will take 1 and 5/7 hours

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