document.write( "Question 499131: How many gallons of 65% antifreeze solution and a 35% antifreeze solution must be mixed to obtain 15 gallons of 53% antifreeze solution? \n" ); document.write( "
Algebra.Com's Answer #337436 by mananth(16946)![]() ![]() You can put this solution on YOUR website! percent percentage ---------------- quantity \n" ); document.write( "antifreeze I 65 ---------------- x gal \n" ); document.write( "antifreeze II 35 ---------------- 15 - x gal \n" ); document.write( "Mixture 53.00% ---------------- 15 \n" ); document.write( " \n" ); document.write( "65 x + 35 ( 15 - x ) = 53 * 15 \n" ); document.write( " \n" ); document.write( "65 x + 525 - 35 x = 795 \n" ); document.write( "65 x - 35 x = 795 - 525 \n" ); document.write( "30 x = 270 \n" ); document.write( "/ 30 \n" ); document.write( " x= 9 gal 65.00% antifreeze I \n" ); document.write( " 6 gal 35.00% antifreeze II \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " |