document.write( "Question 148284: A student mixes distilled water with a 90% solution of acid to produce a 50% solution. If 5 liters of water is used how much 50% solution is produced?\r
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document.write( "I know the answer is 11.25 but I am unable to figure out how they got to that answer. \r
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document.write( "I have tried setting water as x and 5 then acid as 90% and solution as 50% but any way I try does not get to the answer.\r
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document.write( "Help please! \n" );
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Algebra.Com's Answer #108695 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! A student mixes distilled water with a 90% solution of acid to produce a 50% solution. If 5 liters of water is used how much 50% solution is produced? \n" ); document.write( "-------------------------- \n" ); document.write( "Your equation should track the water OR track the acid. \n" ); document.write( "---------------- \n" ); document.write( "Water EQUATION: 5 + 0.10x = 0.50(5+x) \n" ); document.write( "5+0.10x = 2.5+0.5x \n" ); document.write( "0.4x = 2.5 \n" ); document.write( "x = 6.25 liters of 50% solution \n" ); document.write( "------------------------------------- \n" ); document.write( "Acid EQUATION: \n" ); document.write( "0*5 + 0.9x = 0.50(5+x) \n" ); document.write( "0.9x = 2.5 + 0.5x \n" ); document.write( "0.4x = 2.5 \n" ); document.write( "x = 6.25 liters of 50% solution \n" ); document.write( "-------------------------------------- \n" ); document.write( "You don't have to do both; one or the other. \n" ); document.write( "======================================= \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |