document.write( "Question 765808: how many gallons of a 90 antifreeze solution must be mixed with 100 gallons of 25 antifreeze to get a mixture that is 80% antifreeze
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document.write( "you need ___ gallons? \n" );
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Algebra.Com's Answer #466437 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! how many gallons of a 90 antifreeze solution must be mixed with 100 gallons of 25 antifreeze to get a mixture that is 80% antifreeze \n" ); document.write( "--------- \n" ); document.write( "Equation:: \n" ); document.write( "0.90x + 0.25*100 = 0.80(x+100) \n" ); document.write( "-------- \n" ); document.write( "90x + 25*100 = 80x + 80*100 \n" ); document.write( "10x = 55*100 \n" ); document.write( "x = 550 gallons (amt. of 90% solution needed) \n" ); document.write( "======================================= \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "===================\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "you need ___ gallons? \n" ); document.write( "------- \n" ); document.write( " \n" ); document.write( " |