document.write( "Question 125653: How many liters of a 60% acid solution must be mixed with a 75% acid solution to get 20 liters of 72% solution? \n" ); document.write( "
Algebra.Com's Answer #92144 by checkley71(8403)![]() ![]() ![]() You can put this solution on YOUR website! .75x+.60(20-x)=.72*20 \n" ); document.write( ".75x+12-.60x=14.4 \n" ); document.write( ".15x=14.4-12 \n" ); document.write( ".15x=2.4 \n" ); document.write( "x=2.4/.15 \n" ); document.write( "x=16 liters of 75 % soluton is used. \n" ); document.write( "20-16=4 liters of 60% solution is used. \n" ); document.write( "proof \n" ); document.write( ".75*16+.6*4=14.4 \n" ); document.write( "12+2.4=14.4 \n" ); document.write( "14.4=14.4 \n" ); document.write( " |