SOLUTION: How many grams of pure gold and how many grams of an alloy that is 75% gold would it take to make 50 grams of an alloy that is 85% gold?
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Let x = grams of 100
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Let x = grams of 100
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Question 212524: How many grams of pure gold and how many grams of an alloy that is 75% gold would it take to make 50 grams of an alloy that is 85% gold?
Is this correct?
Let x = grams of 100% gold
Let y = grams of 75% gold allow
Given x + y = 50 grams
Find x and y for 85% gold alloy
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X + .75(50 – x) = .85 * 50
X = 20
Y = 30
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