document.write( "Question 310839: Anne & Nancy use a metal alloy that is 23.371% copper to make jewelry. How many ounces of a 10% alloy must be mixed with a 28% alloy to form 105 ounces of the desired alloy? \n" ); document.write( "
Algebra.Com's Answer #222319 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! Anne & Nancy use a metal alloy that is 23.371% copper to make jewelry. \n" ); document.write( "How many ounces of a 10% alloy must be mixed with a 28% alloy to form 105 ounces of the desired alloy? \n" ); document.write( ": \n" ); document.write( "Let x = amt of 28% alloy required \n" ); document.write( "It give the resulting total to be 105 oz, therefore \n" ); document.write( "(105-x) = amt of 10% alloy \n" ); document.write( ": \n" ); document.write( ".28x + .10(105-x) = .23371(105) \n" ); document.write( ": \n" ); document.write( ".28x + 10.5 - .10x = 23.48955 \n" ); document.write( ": \n" ); document.write( ".28x - .10x = 23.48955 - 10.5 \n" ); document.write( ": \n" ); document.write( ".18x = 12.98955 \n" ); document.write( "x = \n" ); document.write( "x = 72.164 oz of 28% alloy \n" ); document.write( "then \n" ); document.write( "105 - 72.164 = 32.836 oz of 10% alloy \n" ); document.write( " |