document.write( "Question 85501: Please help me with this problem as I am terrible at math. It comes from a worksheet.
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document.write( " A pharmacist has 1 liter of a solution that is 22% alcohol. How much pure alcohol must be added to bring the solution up to 27% alcohol
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Algebra.Com's Answer #61734 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! A pharmacist has 1 liter of a solution that is 22% alcohol. How much pure alcohol must be added to bring the solution up to 27% alcohol \n" ); document.write( "----------- \n" ); document.write( "Rule: Follow the active ingredient. \n" ); document.write( "------------ \n" ); document.write( "22% solution DATA: \n" ); document.write( "Amount = 1 liter ; Amt of active ingredient = 0.22*1=0.22 liters \n" ); document.write( "---------------- \n" ); document.write( "Pure Alcohol DATA: \n" ); document.write( "Amount = x liters ; Amt of active ingredient = 100%*x = x liters \n" ); document.write( "---------------- \n" ); document.write( "27% Mixture DATA: \n" ); document.write( "Amount = 1+x liters ; Amt of active ingredient = 0.27(1+x)=0.27+0.27x liters \n" ); document.write( "--------------- \n" ); document.write( "EQUATION: \n" ); document.write( "active + active = active \n" ); document.write( "0.22 + x = 0.27+0.27x \n" ); document.write( "0.05 = 0.73x \n" ); document.write( "x= 0.0685 liters (Amount of 100% alcohol that must be added) \n" ); document.write( "=============== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |