document.write( "Question 460581: How many gallons of a 70% antifreeze solution must be mixed with 90 gallons of 25% antifreeze to get a mixture that is 60% antifreeze.\r
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document.write( "You need to add____ gallons of a 70% antifreeze solution. \n" );
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Algebra.Com's Answer #315916 by richwmiller(17219)![]() ![]() You can put this solution on YOUR website! .7x+.25*90=.6(x+90) \n" ); document.write( "x=315 \n" ); document.write( "315 gallons of 70% antifreeze. \n" ); document.write( " \n" ); document.write( " |