document.write( "Question 1003857: How many grams of a gold alloy that cost $4.00 per gram must be mixed with 30g of a gold alloy that cost $7.00 per gram to make an alloy costing $5.00 per gram? \n" ); document.write( "
Algebra.Com's Answer #620475 by stanbon(75887)\"\" \"About 
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How many grams of a gold alloy that cost $4.00 per gram must be mixed with 30g of a gold alloy that cost $7.00 per gram to make an alloy costing $5.00 per gram?
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\n" ); document.write( "Equation:
\n" ); document.write( "value + value = value
\n" ); document.write( "7*30 + 4x = 5(30+x)
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\n" ); document.write( "7*30 + 4x = 5*30 + 5x
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\n" ); document.write( "x = 2*30
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\n" ); document.write( "x = 60 (amt. of $4.00 alloy needed)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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