document.write( "Question 386243: A 400 gram solution is 25% salt. How much salt must be added to produce a solution that is 40% salt? \n" ); document.write( "
Algebra.Com's Answer #273089 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! A 400 gram solution is 25% salt. How much salt must be added to produce a solution that is 40% salt? \n" ); document.write( "------------------- \n" ); document.write( "Quantity: x + y = 400 \n" ); document.write( "--- \n" ); document.write( "Salt Eq:: 0.25x + y = 0.40*400 \n" ); document.write( "---------------------------------- \n" ); document.write( "Multiply Quantity thru by 25 \n" ); document.write( "Multiply Salt by 100 \n" ); document.write( "------------------------ \n" ); document.write( "25x + 25y = 25*400 \n" ); document.write( "25x + 100y = 40*400 \n" ); document.write( "========================= \n" ); document.write( "75y = 15*400 \n" ); document.write( "y = 80 gram (amt. of salt that must be added) \n" ); document.write( "============================================= \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " \n" ); document.write( " |