document.write( "Question 411202: How much of a 5% solution must be added to 400ml of a 10% salt solution to obtain a 7% solution? \n" ); document.write( "
Algebra.Com's Answer #289056 by robertb(5830)![]() ![]() You can put this solution on YOUR website! 0.05x + 0.10*400 = 0.07(x + 400)\r \n" ); document.write( "\n" ); document.write( "0.05x + 40 = 0.07x + 28\r \n" ); document.write( "\n" ); document.write( "12 = 0.02x\r \n" ); document.write( "\n" ); document.write( "x = 600 ml of the 5% solution. \n" ); document.write( " |