document.write( "Question 202476: Joseph mixes a certain amount of 10% isopropyl mixture with 60 gallons of a 20% isopropyl solution, and the resulting mixture is 16% isopropyl. How much of the 10% isopropyl did he add? To earn credit, you MUST construct an algebraic equation with a variable and solve using algebra steps. \n" ); document.write( "
Algebra.Com's Answer #152700 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Joseph mixes a certain amount of 10% isopropyl mixture with 60 gallons of a 20% isopropyl solution, and the resulting mixture is 16% isopropyl. How much of the 10% isopropyl did he add? To earn credit, you MUST construct an algebraic equation with a variable and solve using algebra steps. \n" ); document.write( "--------------------------------------- \n" ); document.write( "Equation: \n" ); document.write( "iso + iso = iso \n" ); document.write( "0.10x + 0.20(60) = 0.16(x+60) \n" ); document.write( "10x + 1200 = 16x + 960 \n" ); document.write( "6x = 240 \n" ); document.write( "x = 40 gallons (amt. of 10% iso needed for the mixture \n" ); document.write( "================================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |