SOLUTION: Due to dwindling reserves of copper ore, the price of a 100-foot spool of copper wire increased 20% this year to $144. What was the old price (last year's price) for a 100-ft spool
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Question 301406: Due to dwindling reserves of copper ore, the price of a 100-foot spool of copper wire increased 20% this year to $144. What was the old price (last year's price) for a 100-ft spool of wire?
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
The old price plus 20% is equal to the new price.
The old price was $120.
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