document.write( "Question 371797: A 20 oz. Alloy of platinum that costs $220 per ounce is mixed with an alloy that costs $400 per ounce. How many ounces of the $400 alloy should be mixed with the 20 oz. Alloy to make an alloy that costs $300 per ounce? \n" ); document.write( "

Algebra.Com's Answer #264901 by Fombitz(32388) $\"\"$ $\"About$

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\n" ); document.write( "Let A be the amount of $400 alloy.
\n" ); document.write( " $\"400A%2B220%2820%29=300%28A%2B20%29\"$
\n" ); document.write( "Divide both sides by $\"100\"$ ,
\n" ); document.write( " $\"4A%2B44=3A%2B60\"$
\n" ); document.write( " $\"A=60-44\"$
\n" ); document.write( " $\"highlight%28A=16%29\"$ ounces
\n" ); document.write( " \n" ); document.write( "

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