document.write( "Question 996494: A silver dollar, an alloy of silver and copper, is 7.5% copper by weight. How many grams of pure copper should be used to prepare a 200 grams of a copper-silver alloy that is 10% copper by weight? \n" ); document.write( "
Algebra.Com's Answer #614970 by josgarithmetic(39617)![]() ![]() ![]() You can put this solution on YOUR website! x, how many grams pure 100% copper?\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "200-x, amount of the 7.5% alloy.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "two-part mixture, percents, just one variable - video example \n" ); document.write( " |