document.write( "Question 242284: a car radiator has a capacity of 16 quarts and is filled with a 25% antifreeze solution. How much must be drained off and replaced with pure antifreeze to obtain a 40% antifreeze solution? Make a table. \n" ); document.write( "
Algebra.Com's Answer #177363 by stanbon(75887) ![]() You can put this solution on YOUR website! a car radiator has a capacity of 16 quarts and is filled with a 25% antifreeze solution. How much must be drained off and replaced with pure antifreeze to obtain a 40% antifreeze solution? Make a table. \n" ); document.write( "------------------------------------------------------- \n" ); document.write( "Equation: \n" ); document.write( "alcohol - alcohol + alcohol = alcohol \n" ); document.write( "0.25*16 - 0.25x + 1.00x = 0.40*16 \n" ); document.write( "---- \n" ); document.write( "Multiply thru by 100 to get: \n" ); document.write( "25*16 - 25x + 100x = 40*16 \n" ); document.write( "75x = 15*16 \n" ); document.write( "x = 3.2 quarts (amount to be removed and replaced) \n" ); document.write( "======================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |