document.write( "Question 939652: the direction of a 100% solution of disinfection concentrate direct you to dilute to a 30% solution before using. if you want to make 500ml of the 30% solution how much disinfectant concentrate must be used? \n" ); document.write( "
Algebra.Com's Answer #572629 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! the direction of a 100% solution of disinfection concentrate direct you to dilute to a 30% solution before using. if you want to make 500ml of the 30% solution how much disinfectant concentrate must be used? \n" ); document.write( "----- \n" ); document.write( "disin + disin = disin \n" ); document.write( "1*x + 0*(500-x) = 0.30*500 \n" ); document.write( "----- \n" ); document.write( "100x + 0 = 30*500 \n" ); document.write( "x = 5*30 = 150 ml (amt of concentrate to use) \n" ); document.write( "500-x = 350 ml (amt of dilution to use) \n" ); document.write( "---------- \n" ); document.write( "cheers, \n" ); document.write( "Stan H. \n" ); document.write( "--------------- \n" ); document.write( " |