document.write( "Question 792076: One website recommends a 6% chlorine bleach-water solution to remove mildew. A chemical lab has 3% and 15% solutions in stock. How many gallons of each should be mixed to obtain 100 gallons of mildew spray? \n" ); document.write( "
Algebra.Com's Answer #479846 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! One website recommends a 6% chlorine bleach-water solution to remove mildew. A chemical lab has 3% and 15% solutions in stock. How many gallons of each should be mixed to obtain 100 gallons of mildew spray? \n" ); document.write( "---------- \n" ); document.write( "Equation: \n" ); document.write( "chlorine + chlorine = chlorine \n" ); document.write( "--------- \n" ); document.write( "0.03x + 0.15(100-x) = 0.06*100 \n" ); document.write( "--------- \n" ); document.write( "3x + 15*100 - 15x = 6*100 \n" ); document.write( "-12x = -9*100 \n" ); document.write( "x = (3/4)100 \n" ); document.write( "x = 75 gallons (amt of 3% solution needed) \n" ); document.write( "100-x = 25 gallons (amt of 15% solution needed) \n" ); document.write( "================ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "================ \n" ); document.write( " \n" ); document.write( " |