document.write( "Question 209338: How many quarts of pure antifreeze must be added to 4 quarts of a 20% antifreeze solution to obtain a 30% anitfreeze solution \n" ); document.write( "
Algebra.Com's Answer #158285 by rfer(16322)![]() ![]() ![]() You can put this solution on YOUR website! 1.00x+.2(4-x)=4*.3 \n" ); document.write( "x+.8-.2x=1.2 \n" ); document.write( ".8x=.4 \n" ); document.write( "x=.5 qts of 100% \n" ); document.write( " |