document.write( "Question 947566: Q. How much salt should be added to 60 litres of a 20% solution of salt to increase it to a 40 % solution of salt?\r
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document.write( "Do you think you can frame the equations too? How do i convert 20% of salt to measurements (ie grams or kilograms)\r
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document.write( "i was thinking (60 + x) 40/100 = ....
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document.write( "Im really confused, since its a salt solution. Im in 8th grade, kindly explain in a way that is understandable to me. Thanks in advance \n" );
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Algebra.Com's Answer #578219 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! How much salt should be added to 60 litres of a 20% solution of salt to increase it to a 40 % solution of salt? \n" ); document.write( "----------------- \n" ); document.write( "Equation: \n" ); document.write( "salt + salt = salt \n" ); document.write( "0.20*60 + 1*x = 0.40(60+x) \n" ); document.write( "----- \n" ); document.write( "Multiply thru by 100 to get: \n" ); document.write( "20*60 + 100x = 40*60 + 40x \n" ); document.write( "----- \n" ); document.write( "Subtract 40x from both sides \n" ); document.write( "Subtract 20*60 from both sides \n" ); document.write( "------ \n" ); document.write( "60x = 20*60 \n" ); document.write( "---- \n" ); document.write( "x = 20 litres (amt. of concentrated salt solution to add) \n" ); document.write( "-------------- \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "----------------- \n" ); document.write( " |