document.write( "Question 588167: Can you please help me with this problem?\r
\n" ); document.write( "\n" ); document.write( "How many gallons of a 10% acid solution must be mixed with 5 gal of 25% acid solution to make a 15% acid solution?
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Algebra.Com's Answer #374416 by mananth(16946)\"\" \"About 
You can put this solution on YOUR website!
-------------- percent ---------------- Amount
\n" ); document.write( "Acid solution I 25 ---------------- 5 gallons
\n" ); document.write( "Acid solution II 10 ---------------- x gallons
\n" ); document.write( "Total 15 ---------------- 5 + x gallons
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\n" ); document.write( "25 * 5 + 10 x = 15 ( 5 + x )
\n" ); document.write( "125 + 10 x = 75 + 15 x
\n" ); document.write( "10 x -15 x = -125 + 75
\n" ); document.write( "-5 x = -50
\n" ); document.write( "/ -5
\n" ); document.write( "x = 10 of gallons Acid solution II
\n" ); document.write( " 10 of gallons Acid solution I
\n" ); document.write( "m.ananth@hotmail.ca
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