document.write( "Question 163295: How many liters of 20% salt solution must be added to 60 liters of 40% salt solution to get a solution that is 35% salt? \n" ); document.write( "

Algebra.Com's Answer #120320 by Earlsdon(6294) $\"\"$ $\"About$

You can put this solution on YOUR website!
Let x = the number of liters of 20% salt solution to be added to 60 liters of 40% salt solution to obtain (60+x) liters of 35% salt solution.
\n" ); document.write( "You can write the equation to solve for x, after converting the percentages to their decimal equivalents:
\n" ); document.write( "0.2x+0.4(60) = 0.35(60+x) Simplify.
\n" ); document.write( "0.2x+24 = 21+0.35x Subtract 0.2x from both sides.
\n" ); document.write( "24 = 21+0.15x Subtract 21 from both sides.
\n" ); document.write( "3 = 0.15x Divide both sides by 0.15
\n" ); document.write( "20 = x
\n" ); document.write( "You would need to add 20 liters of 20% salt solution to 60 liters of salt solution to obtain 80 liters of 35% salt solution.
\n" ); document.write( " \n" ); document.write( "

\n" );