document.write( "Question 585618: How many gallons of a 10% salt solution must be mixed with 12 gallons of a 15% salt solution to obtain a 12% salt solution? \n" ); document.write( "
Algebra.Com's Answer #373432 by mananth(16946)\"\" \"About 
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-------------- percent ---------------- Amount
\n" ); document.write( "Salt solution I 15 ---------------- 12 gallons
\n" ); document.write( "salt solution II 10 ----------------x gallons
\n" ); document.write( "Total 12 ---------------- 12 + x gallons
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\n" ); document.write( "15*12+10x=12(12 +x)
\n" ); document.write( "180+10x =144+12 x
\n" ); document.write( "10x-12x =-180+144
\n" ); document.write( "-2x =-36
\n" ); document.write( "/ -2
\n" ); document.write( "x = 18 of gallons salt solution II
\n" ); document.write( " 18 of gallons Salt solution I
\n" ); document.write( "m.ananth@hotmail.ca
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