SOLUTION: Can you please solve this problem and show me how to do it? Than you.
How many g of gold should a coin of 53% gold be if when combined with a 5 g pure gold necklace, it forms a
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How many g of gold should a coin of 53% gold be if when combined with a 5 g pure gold necklace, it forms a
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Question 961261: Can you please solve this problem and show me how to do it? Than you.
How many g of gold should a coin of 53% gold be if when combined with a 5 g pure gold necklace, it forms a metal that is 76% gold? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! How many g of gold should a coin of 53% gold be if when combined with a 5 g pure gold necklace, it forms a metal that is 76% gold?
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Equation:
gold + gold = gold
0.53x + 1*5 = 0.76(x+5)
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Multiply thru by 100 to get::
53x + 100*5 = 76*x + 76*5
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23x = 24*5
x = 5.217 grams (amt of 53% gold to add)
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Cheers,
Stan H.
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