document.write( "Question 945690: please show me the way you solve this problem. i am almost there. How many gallons of 5% acid solution should be mixed with 20 gallons of a 10% acid solution to obtain an 8% acid solution?
\n" ); document.write( "
\n" ); document.write( "

Algebra.Com's Answer #576846 by lwsshak3(11628)\"\" \"About 
You can put this solution on YOUR website!
please show me the way you solve this problem. i am almost there. How many gallons of 5% acid solution should be mixed with 20 gallons of a 10% acid solution to obtain an 8% acid solution?
\n" ); document.write( "***
\n" ); document.write( "let x=amt of 5% solution to mix
\n" ); document.write( "x+20=amt of combined 8% solution
\n" ); document.write( "..
\n" ); document.write( "5%x+10%*20=8%(x+20)
\n" ); document.write( ".05x+2=.08x+1.6
\n" ); document.write( ".03x=0.4
\n" ); document.write( "x=13 1/3
\n" ); document.write( "amt of 5% solution to mix=13 1/3 gallon
\n" ); document.write( "
\n" );