# SOLUTION: roy can tar a roof in nine hrs.one day his friend jose helped him adn it took only 4.74 hrs. how long would it take jose to do it alone

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 Click here to see ALL problems on Finance Question 254210: roy can tar a roof in nine hrs.one day his friend jose helped him adn it took only 4.74 hrs. how long would it take jose to do it aloneAnswer by ankor@dixie-net.com(15622)   (Show Source): You can put this solution on YOUR website!roy can tar a roof in nine hrs.one day his friend jose helped him adn it took only 4.74 hrs. how long would it take jose to do it alone : let x = time required when J does it alone : The the completed job = 1 : + = 1 Multiply eq by 9x, results: 4.74x + 4.74(9) = 9x : 4.74x + 42.66 = 9x : 42.66 = 9x - 4.74x : 42.66 = 4.26x x = x = 10.01 hrs, J by himself : : Check solution + = .5267 + .4735 = 1.00, confirms our solution