document.write( "Question 202772: The ratio of the weight of copper to the weight of zinc in a U.S. penny is 1/39. If 50 kg of zinc is being turned into pennies, how much copper is needed? \n" ); document.write( "
Algebra.Com's Answer #152945 by rfer(16322) ![]() You can put this solution on YOUR website! 1/39:x/50 \n" ); document.write( "39x=50 \n" ); document.write( "x=1.28kg \n" ); document.write( " |