document.write( "Question 466369: Help I need help answering this question, Im in college Algebra!
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document.write( "Suppose that you have a supply of a 35% solution of alcohol and a 65% solution of alcohol. How many quarts of each should be mixed to produce 30 quarts that is 60% alcohol? \r
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document.write( "35% solution=___________qt
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document.write( "65% solution=___________qt \n" );
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Algebra.Com's Answer #319714 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Suppose that you have a supply of a 35% solution of alcohol and a 65% solution of alcohol. How many quarts of each should be mixed to produce 30 quarts that is 60% alcohol? \n" ); document.write( "----------------------- \n" ); document.write( "Alcohol + alcohol = alcohol \n" ); document.write( "0.35x + 0.65(30-x) = 0.50*30 \n" ); document.write( "--- \n" ); document.write( "Multiply thru by 100 and solve for \"x\": \n" ); document.write( "35x + 65*30 - 65x = 50*30 \n" ); document.write( "-35x = -15*30 \n" ); document.write( "x = (3/7)30 \n" ); document.write( "x = 12.86 quarts ; (amt. of 35% solution needed) \n" ); document.write( "30 - 12.86 = 17.14 quarts ; (amt of 65% solution needed) \n" ); document.write( "========================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "==========================\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( " |