document.write( "Question 1130534: A goldsmith has two gold alloys. The first alloy is 40% gold; the second alloy is 70% gold. How many grams of each should be mixed to produce 30 grams of an alloy that is 60% gold?
\n" ); document.write( "amount of 40% gold g
\n" ); document.write( "amount of 70% gold g
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Algebra.Com's Answer #747196 by josgarithmetic(39617)\"\" \"About 
You can put this solution on YOUR website!
x grams of the 70% Gold
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\n" ); document.write( "\n" ); document.write( "\"70x%2B40%2830-x%29=60%2A30\"\r
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\n" ); document.write( "\n" ); document.write( "\"7x%2B4%2830-x%29=180\"\r
\n" ); document.write( "\n" ); document.write( "\"7x%2B120-4x=180\"\r
\n" ); document.write( "\n" ); document.write( "\"3x=180-120\"\r
\n" ); document.write( "\n" ); document.write( "\"3x=60\"\r
\n" ); document.write( "\n" ); document.write( "\"x=20\"\r
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\n" ); document.write( "You are not missing how to get the 40%. Look again at the assigned variable. x if for grams of the 70% Gold. What else did THAT mean? The problem description itself should help.
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\n" ); document.write( "30-x grams of the 40% Gold
\n" ); document.write( "\"30-20\"
\n" ); document.write( "\"10\"--------amount of the 40% Gold alloy
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