document.write( "Question 78147: How many gallons of a 70% alcohol solution must be mixed with 50 gallons of a 20% solution to obtain a solution that is 60% alcohol \n" ); document.write( "
Algebra.Com's Answer #56059 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! How many gallons of a 70% alcohol solution must be mixed with 50 gallons of a 20% solution to obtain a solution that is 60% alcohol \n" ); document.write( "--------------- \n" ); document.write( "70% solution DATA: \n" ); document.write( "Amount = x gallons ; Amt of alcohol = 0.70x gallons \n" ); document.write( "-------------------- \n" ); document.write( "50% solution DATA: \n" ); document.write( "Amount 50 gallons ; Amt of alcohol = 0.5(50) = 25 gallons \n" ); document.write( "-------------- \n" ); document.write( "Mixture DATA: \n" ); document.write( "Amt = x+50 gallons ; Amt of alcohol = 0.60(x+50)= 0.6x+30 gallons \n" ); document.write( "----------------- \n" ); document.write( "alcohol + alcohol = alcohol \n" ); document.write( "0.7x + 25 = 0.6x+30 \n" ); document.write( "0.1x =5 \n" ); document.write( "x=50 gallons (Amt of 70% solution that must be used.) \n" ); document.write( "=========== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |