document.write( "Question 346723: Hello theres one question on my alegebra that i just cannot figure it's: How many liters of water must be added to 30liters of a 20% alcohol solution to dilute it to a 15% solution? \n" ); document.write( "
Algebra.Com's Answer #247924 by ewatrrr(24785)![]() ![]() You can put this solution on YOUR website! Hi, \n" ); document.write( "*Note: the 20% tells us how much of the original 30L TOTAL mixture is alcohol! \n" ); document.write( "That is: .20*30L = 6L \n" ); document.write( "That tells us we have 6L of alcohol to use for the New Mixture. \n" ); document.write( ". \n" ); document.write( "The question states the new mixture is to be a 15% acohol Mixture \n" ); document.write( "Let M be the TOTAL amount Liters in the new mixture. \n" ); document.write( ". \n" ); document.write( "That is: .15*M = 6L \n" ); document.write( ". \n" ); document.write( "Solve for M \n" ); document.write( "M = 40L We had 30L, need to add 10L of water. \n" ); document.write( " |