document.write( "Question 829453: How many gallons of a 14% salt solution must be mixed with a 38% salt solution to make 40 gallons of 20% salt solution?\r
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Algebra.Com's Answer #499863 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! How many gallons of a 14% salt solution must be mixed with a 38% salt solution to make 40 gallons of 20% salt solution? \n" ); document.write( "------------------ \n" ); document.write( "Equation: \n" ); document.write( "salt + salt = salt \n" ); document.write( "0.14x + 0.38(40-x) = 0.20*40 \n" ); document.write( "---------- \n" ); document.write( "14x + 38(40) - 38x = 20*40 \n" ); document.write( "---------- \n" ); document.write( "-24x = -18*40 \n" ); document.write( "----- \n" ); document.write( "x = (3/4)40 \n" ); document.write( "x = 30 gallons (amt. of 14% solution needed) \n" ); document.write( "40-x = 10 gallons (amt. of 38% solution needed) \n" ); document.write( "================ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "================ \n" ); document.write( " |