SOLUTION: There are 310 pounds on the left plate of a scale and 230 pounds on the right plate. Suppose that you must balance the scale by removing 8 pound bags from the left plate and exact

Question 403158: There are 310 pounds on the left plate of a scale and 230 pounds on the right plate. Suppose that you must balance the scale by removing 8 pound bags from the left plate and exactly the same number of 4 pound bags from the right plate. How many bags must you remove from each side in order to balance the scale?
Answer by scott8148(6628) (Show Source): You can put this solution on YOUR website!
the weight difference is 80 lb (310-230)

each bag removal changes the difference by 4 lb (8-4)

number of bags to remove ___ 80 / 4 = 20
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