document.write( "Question 215606: How many liters of a 10% acid solution must be mixed with 5 liters of a 25% acid solution to give 15% solution? \n" ); document.write( "
Algebra.Com's Answer #162900 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
How many liters of a 10% acid solution must be mixed with 5 liters of a 25% acid solution to give 15% solution?
\n" ); document.write( "-----------------------------------------
\n" ); document.write( "Equation:
\n" ); document.write( "acid + acid = acid
\n" ); document.write( "0.10x + 0.25*5 = 0.15(x+5)
\n" ); document.write( "Multiply thru by 100 to get:
\n" ); document.write( "10x + 24*5 = 15x + 15*5
\n" ); document.write( "5x = 9*5
\n" ); document.write( "x = 9 liters (amt. of 10% solution needed)
\n" ); document.write( "==========================
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "
\n" );