document.write( "Question 459513: How many quarts of a 55% acid solution must be mixed with 8 quarts of a 30% acid solution to produce a 45% acid solution? \n" ); document.write( "
Algebra.Com's Answer #315782 by jorel1380(3719)\"\" \"About 
You can put this solution on YOUR website!
.55x+.30(8)=.45(x+8)
\n" ); document.write( ".55x+2.4=.45x+3.6
\n" ); document.write( ".1x=1.2
\n" ); document.write( "x=1.2/.1=12
\n" ); document.write( "You need 12 quarts of 55% solution..
\n" ); document.write( "
\n" );