document.write( "Question 1065188: A metalworker has a metal alloy that is 25​% copper and another alloy that is 75​% copper. How many kilograms of each alloy should the metalworker combine to create 50 kg of a 55​% copper​ alloy? \n" ); document.write( "
Algebra.Com's Answer #680316 by josgarithmetic(39618)\"\" \"About 
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x of the 25%
\n" ); document.write( "50-x of the 75%
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\n" ); document.write( "\n" ); document.write( "\"%2825x%2B75%2850-x%29%29%2F50=55\"\r
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\n" ); document.write( "\n" ); document.write( "x=20 for the 25%
\n" ); document.write( "50-x = 30 for the 75%
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