document.write( "Question 844850: laura and dan use a metal alloy that is 21% copper to make jewelry. how many ounces of a 19% alloy must be mixed with a 25% alloy to form 78 ounces of the desired alloy \n" ); document.write( "
Algebra.Com's Answer #508942 by richwmiller(17219)![]() ![]() You can put this solution on YOUR website! .19x+.25y=78*.21, \n" ); document.write( "x+y=78 \n" ); document.write( "http://www.algebra.com/algebra/homework/word/mixtures/Mixture_Word_Problems.faq.question.25157.html \n" ); document.write( " |