document.write( "Question 273855: A mixture of 16% disinfectant solution is to be made from 20% and 14% disinfectant solutions. How much of each solution should be used in 15 gallons of the 16% solution is needed. \n" ); document.write( "
Algebra.Com's Answer #200003 by checkley77(12844)![]() ![]() ![]() You can put this solution on YOUR website! .20x+.14(15-x)=.16*15 \n" ); document.write( ".20x+2.1-.14x=2.4 \n" ); document.write( ".06x=2.4-2.1 \n" ); document.write( ".06x=.3 \n" ); document.write( "x=.3/.06 \n" ); document.write( "x=5 gal. of 20% solution is used. \n" ); document.write( "15-5=10 gal. or 14% solution is used. \n" ); document.write( "Proof: \n" ); document.write( ".20*5+.14*10=.16*15 \n" ); document.write( "1+1.4=2.4 \n" ); document.write( "2.4=2.4 \n" ); document.write( " |