SOLUTION: Enrico can paint a house in six days. Albert can paint the same house in nine days. Exactly how many days will it take the, if they work together?

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Question 851152: Enrico can paint a house in six days. Albert can paint the same house in nine days. Exactly how many days will it take the, if they work together?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi,

Lt x represent time working together

 1%2F6+%2B+1%2F9+=+1%2Fx    |Multiplying thru by 18x so as all denominators = 1

   3x + 2x = 18

     5x = 18

      x = 18/5 days  0r   3 3⁄5  days