SOLUTION: One hundred twenty pounds of weight is placed at one end of a 10ft lever and 25 pounds is place at the other end. How far from the 120 lb weight should the fulcrum be placed to hav

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Question 282415: One hundred twenty pounds of weight is placed at one end of a 10ft lever and 25 pounds is place at the other end. How far from the 120 lb weight should the fulcrum be placed to have a balanced system?
Answer by dabanfield(803) About Me  (Show Source):
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One hundred twenty pounds of weight is placed at one end of a 10ft lever and 25 pounds is place at the other end. How far from the 120 lb weight should the fulcrum be placed to have a balanced system?
Let x be the distance from the 120 lb weight. Then the distance from the 25 lb weight is 10-x. To maintain balance we have:
120*(10-x) = 25*x
Solve the above for x.