document.write( "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? \r
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| Algebra.Com's Answer #546558 by richwmiller(17219)     You can put this solution on YOUR website! Do not write in all caps. \n" ); document.write( "One problem at a time \n" ); document.write( "No similar problems \n" ); document.write( " \n" ); document.write( " |