An alloy of tin is 15% tin and weights 20 pounds. a second allow is 10% tin. how many pounds of the second alloy must be added to the first to get a 12% mixture? 30 lb 40 lb 60 lb

maximum area = xy = (16)(32) = 512 ft2

to maximize the area of the garden, the side of the fence parallel to the side of the house should be 32 ft long, and the other two sides should both have length 16 ft.'

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