document.write( "Question 763949: A radiator contains 10 quarts of fluid, 30% of which is antifreeze. How much fluid should be drained and replaced with pure antifreeze so that the new mixture is 40% antifreeze? \n" ); document.write( "
Algebra.Com's Answer #465117 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! A radiator contains 10 quarts of fluid, 30% of which is antifreeze. How much fluid should be drained and replaced with pure antifreeze so that the new mixture is 40% antifreeze? \n" ); document.write( "--------------------- \n" ); document.write( "Equation: \n" ); document.write( "active - active + active = active \n" ); document.write( "0.30*10 - 0.30x + 1.00x = 0.40*10 \n" ); document.write( "------- \n" ); document.write( "30*10 - 30x + 100x = 40*10 \n" ); document.write( "70x = 10*10 \n" ); document.write( "x = 10/7 = 1.4286 quarts (amt. to remove and replace) \n" ); document.write( "================ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "================ \n" ); document.write( " |