SOLUTION: Working alone, Joe can paint the room in 6 hours. If Manny helps, then together they can paint the room in 2 hours. Manny can paint the room by himself in ______ hours.
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Systems-of-equations
-> SOLUTION: Working alone, Joe can paint the room in 6 hours. If Manny helps, then together they can paint the room in 2 hours. Manny can paint the room by himself in ______ hours.
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Question 942202: Working alone, Joe can paint the room in 6 hours. If Manny helps, then together they can paint the room in 2 hours. Manny can paint the room by himself in ______ hours.
Please give me a clear answer thank you Answer by macston(5194) (Show Source):
You can put this solution on YOUR website! Joe paints 1 room in six hours so he paints 1/6 room per hr
With Manny, they paint the room in two hours, so Joe has painted 2hrs*(1/6 room/hr) or 1/3 of the room. Manny has painted the remaining two thirds in two hours, so he paints one third room per hour, so Manny can paint the entire room by himself in three hours.
