document.write( "Question 1014438: a metalworker has meal alloy that is 15% copper and another alloy that is 60% copper. how many kilograms of each alloy should the metalworker combine to create 100 kg of a 42% copper. the metalworker should use ? kilograms of the metal alloy that is 15% copper and ? kilograms of the 60% copper \n" ); document.write( "
Algebra.Com's Answer #630754 by josgarithmetic(39618)\"\" \"About 
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You can solve using two variables or you can solve using only one variable.\r
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\n" ); document.write( "\n" ); document.write( "lesson for two-part mixture, how much of both parts\r
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\n" ); document.write( "\n" ); document.write( "If you want to use just one variable for two-part mixture
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