document.write( "Question 917243: Macy wants to change 18 quarts of an 8% solution of ammonia to a 6% solution by adding pure water. How much pure water must she add? \n" ); document.write( "
Algebra.Com's Answer #556578 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Macy wants to change 18 quarts of an 8% solution of ammonia to a 6% solution by adding pure water. How much pure water must she add? \n" ); document.write( "------------------ \n" ); document.write( "Equation: \n" ); document.write( "water + water = water \n" ); document.write( "----- \n" ); document.write( "0.92*18 + 1*x = 0.94(18+x) \n" ); document.write( "-------- \n" ); document.write( "92*18 + 100x = 94*18 + 94x \n" ); document.write( "6x = 2*18 \n" ); document.write( "x = 6 qts (amt. of pure water to add) \n" ); document.write( "------------------ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "-------------------- \n" ); document.write( " |