document.write( "Question 338649: A chemist has one solution that is 25% salt and another solution that is 10% salt. How many liters of each should the chemist use to make 120 liters of a solution that is 15% salt? \n" ); document.write( "
Algebra.Com's Answer #242716 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! A chemist has one solution that is 25% salt and another solution that is 10% salt. How many liters of each should the chemist use to make 120 liters of a solution that is 15% salt? \n" ); document.write( "-------------- \n" ); document.write( "Equation: \n" ); document.write( "salt + salt = salt \n" ); document.write( "0.25x + 0.10(120-x) = 0.15*120 \n" ); document.write( "---- \n" ); document.write( "Multiply thru by 100 to get: \n" ); document.write( "25x + 10*120-10x = 15*120 \n" ); document.write( "15x = 5*120 \n" ); document.write( "x = 40 liters (amt. of 25% solution needed in the mixture) \n" ); document.write( "--- \n" ); document.write( "120-80 liters (amt. of 10% solution needed in the mixture) \n" ); document.write( "============================================================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "=========== \n" ); document.write( " |