trentbrock2796 trentbrock2796

20-11-2017
Mathematics

contestada

Sally can paint a room in 55 hours while it takes steve 77 hours to paint the same room. how long would it take them to paint the room if they worked together

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jorel1380 jorel1380

21-11-2017

1/5+1/7=12/35 of one room painted per hour
1 room/(12/35)=35/12 hours per room working together
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