document.write( "Question 309518: how many milliliters of a 20% solution should be added to a 50 milliliters of 40% solution to obtain 25% solution? \n" ); document.write( "
Algebra.Com's Answer #221378 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! how many milliliters of a 20% solution should be added to a 50 milliliters of 40% solution to obtain 25% solution? \n" ); document.write( "---------------------------- \n" ); document.write( "Equation: \n" ); document.write( "active + active = active \n" ); document.write( "0.40*50 + 0.20x = 0.25(50+x) \n" ); document.write( "---- \n" ); document.write( "Multiply thru by 100 to get: \n" ); document.write( "40*50 + 20x = 25*50 + 25x \n" ); document.write( "--- \n" ); document.write( "5x = 15*50 \n" ); document.write( "x = 150 milliliters (amt. of 20% solution needed in the mixture) \n" ); document.write( "===================================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |