document.write( "Question 903327: How many gallons of a 4% salt solution must be mixed with 25 gallons of a 6% solution to obtain a 5% solution? \n" ); document.write( "
Algebra.Com's Answer #547903 by richwmiller(17219)\"\" \"About 
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0.04*x+0.06*25=0.05(25+x)
\n" ); document.write( "0.04*x+1.5=1.25+0.05x
\n" ); document.write( "0.04x-0.05x=1.25-1.5
\n" ); document.write( "-0.01x=-0.25
\n" ); document.write( "x=25 gallons of 4% is added to 25 gallons of 6% to get 50 gallons at 5%
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\n" ); document.write( "0.04*25+0.06*25=0.05(25+25)
\n" ); document.write( "1+1.5=0.05(50)
\n" ); document.write( "2.5=2.5
\n" ); document.write( "ok
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