document.write( "Question 1011699: 1) How many cubic centimeters of water must be evaporated from 32 cubic centimeters of 4% solution of salt and water to make a solution that is 16% salt?\r
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document.write( "2) How much pure silver must be added to 80 grams of fine silver (an alloy of 90% silver) to obtain a sterling silver (an alloy that is 92.5% silver)?\r
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document.write( "3) A solution of water and alcohol is 80% alcohol. How much alcohol must be added to 50 gallons of this solution to make it 90% alcohol?\r
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document.write( "Thanks in advance!
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Algebra.Com's Answer #627443 by josgarithmetic(39617)![]() ![]() ![]() You can put this solution on YOUR website! (1) \n" ); document.write( "w, amount of volume to evaporate for removal; \n" ); document.write( "Amount of salt stays the same but amount of solution becomes less as result of removal of some w water. \n" ); document.write( " \n" ); document.write( "- \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "(2) and (3), learn this:Two part mixture, one material quantity known, the other unknown \n" ); document.write( " |