SOLUTION: Alex can pour concrete on a walkway in x hours alone while Andy can pour concrete on the same walkway in two more hours than Alex . problem:how fast can they pour concrete on the w
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Question 901197:  Alex can pour concrete on a walkway in x hours alone while Andy can pour concrete on the same walkway in two more hours than Alex . problem:how fast can they pour concrete on the walkway if they work together? 
 
Answer by richwmiller(17219)   (Show Source): You can put this solution on YOUR website!
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