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Mathematics, 25.04.2020 03:00 werty775581
A goldsmith has two alloys of gold, the first having a purity of 53% and the second having a purity of 83%. If x grams of the first alloy are mixed with y grams of the second, obtaining 100 grams of an alloy which contains 72.5% gold, find x to the nearest gram.
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A goldsmith has two alloys of gold, the first having a purity of 53% and the second having a purity...
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