document.write( "Question 934739: An alloy is a mixture of metals. Suppose that a certain alloy is made by mixing 100 grams of an alloy containing 35% copper with 60 grams of an alloy containing 55% copper. How many grams of copper are in the resulting mixture? What percentage of the resulting mixture is copper? \n" ); document.write( "
Algebra.Com's Answer #567766 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! An alloy is a mixture of metals. \n" ); document.write( " Suppose that a certain alloy is made by mixing 100 grams of an alloy containing 35% copper with 60 grams of an alloy containing 55% copper. \n" ); document.write( " How many grams of copper are in the resulting mixture? \n" ); document.write( " What percentage of the resulting mixture is copper? \n" ); document.write( ": \n" ); document.write( "From the information given we know that the final mixture: 100+60 = 160 grams \n" ); document.write( ": \n" ); document.write( "let x = the percent copper of the final mixture \n" ); document.write( "35(100) + 55(60) = 160x \n" ); document.write( "3500 + 3300 = 160x \n" ); document.write( "6800 = 160x \n" ); document.write( "x = 6800/160 \n" ); document.write( "x = 42.5% \n" ); document.write( " |