document.write( "Question 1109101: how much water must be evaporated from 65 gallons of a 9% salt solution to make a 12% salt solution? \n" ); document.write( "
Algebra.Com's Answer #724116 by addingup(3677)![]() ![]() You can put this solution on YOUR website! 0.09(65) = 0.12(65-x) \n" ); document.write( "5.85 = 7.8-0.12x \n" ); document.write( "-0.12x = -1.95 \n" ); document.write( "x = -1.95/-0.12 divide, and remember that -/- = + so you can ignore the - sign when you divide, since your answer will be positive anyway. I get that you have to evaporate 16.25 gallons. \n" ); document.write( " \n" ); document.write( " |