document.write( "Question 1029141: How many kg of ore containing 5% gold must be melted down with 8kg of 2% gold to produce a mixture which is 4% gold? \n" ); document.write( "
Algebra.Com's Answer #644184 by mananth(16946)![]() ![]() You can put this solution on YOUR website! -------------- percent ---------------- Amount \n" ); document.write( "Ore I 2 ---------------- 8 kg \n" ); document.write( "Ore II 5 ---------------- x kg \n" ); document.write( "Mixture 4 ---------------- 8 + x kg \n" ); document.write( " \n" ); document.write( "2 * 8 + 5 x = 4 ( 8 + x ) \n" ); document.write( "16 + 5 x = 32 + 4 x \n" ); document.write( "5 x -4 x = -16 + 32 \n" ); document.write( "1 x = 16 \n" ); document.write( "/ 1 \n" ); document.write( "x = 16 kg Ore II \n" ); document.write( " \n" ); document.write( "m.ananth@hotmail.ca \n" ); document.write( " \n" ); document.write( " |