document.write( "Question 800652: how many gallons of 15 percent saw solution must be mixed with 30 gallons of 25 percent solution to obtain 20 percent solution \n" ); document.write( "
Algebra.Com's Answer #483207 by mananth(16946)\"\" \"About 
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--- percent ---------------- Amount
\n" ); document.write( "Solution I 25 ---------------- 30 gallons
\n" ); document.write( "solution II 15 ---------------- x gallons
\n" ); document.write( "Mixture 20 ---------------- 30 + x gallons
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\n" ); document.write( "25 * 30 + 15 x = 20 ( 30 + x )
\n" ); document.write( "750 + 15 x = 600 + 20 x
\n" ); document.write( "15 x -20 x = -750 + 600
\n" ); document.write( "-5 x = -150
\n" ); document.write( "/ -5
\n" ); document.write( "x = 30 gallons solution II
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\n" ); document.write( "m.ananth@hotmail.ca
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