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Anne and Nancy use a metal alloy that is 20.5% cooper to make jewelry. How many ounces of a 14% alloy must be mixed with a 25% alloy to form 66 ounces of the desired alloy?
A pie-shaped (triangular) lakefront lot has a perimeter of 1,800 feet. One side is 200 feet longer than the shortest side, while the third side is 400 feet longer than the shortest side. What are the lengths of all three sides?
Doubling Time: If interest is compounded continuously and the interest rate is tripled, what effect will this have on the time required for an investment to double? A = P(e^(rt))
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