document.write( "Question 324843: your radiator holds 5 gallons of fluid. if it is full with a 15% solution, how much fluid should be drained and replaced with a 65% antifreeze mixture to result in a 40% mixture of antifreeze? \n" ); document.write( "
Algebra.Com's Answer #232581 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! your radiator holds 5 gallons of fluid. if it is full with a 15% solution, how much fluid should be drained and replaced with a 65% antifreeze mixture to result in a 40% mixture of antifreeze? \n" ); document.write( "---------------------- \n" ); document.write( "active - active + active = active \n" ); document.write( "---- \n" ); document.write( "0.15*5 - 0.15x + 0.65x = 0.40*5 \n" ); document.write( "=================================== \n" ); document.write( "Multiply thru by 100 to get: \n" ); document.write( "15*5 - 15x + 65x = 40*5 \n" ); document.write( "50x = 25*5 \n" ); document.write( "x = (1/2)(5) \n" ); document.write( "x = 2.5 gallons (amt. of 15% solution that \n" ); document.write( "should be replaced with 65% solution. \n" ); document.write( "============================= \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "============ \n" ); document.write( " |