document.write( "Question 478103: How many gallons of a 12% salt solution must be mixed with 6 gallons of a 20% salt solution to obtain 13% salt solution? \n" ); document.write( "
Algebra.Com's Answer #327593 by mananth(16946)![]() ![]() You can put this solution on YOUR website! percent percentage ---------------- quantity \n" ); document.write( "Salt solution 12 ----------------x gallons \n" ); document.write( "Salt solution 20 ----------------6-x gallons \n" ); document.write( "Mixture 13.00% ---------------- 6 \n" ); document.write( " \n" ); document.write( "12x+20(6-x)=13* 6 \n" ); document.write( "12x+120-20x=78 \n" ); document.write( "12x-20x =78-120 \n" ); document.write( "-8x=-42 \n" ); document.write( "/-8 \n" ); document.write( "x=5.25 gallons 12.00% Salt solution \n" ); document.write( "0.75 gallons 20.00% Salt solution \n" ); document.write( " \n" ); document.write( " |