document.write( "Question 1002837: Hi, \r
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document.write( "I would just like to say thank you in advanced for your help. My question is as follows: \r
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document.write( "A potting mixture contains 12% peat moss and 6% vermiculite. How much peat moss must be added to 100 kg of this mixture to produce a new mixture having 15% peat and 15% vermiculite? \r
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document.write( "Thank you again \n" );
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Algebra.Com's Answer #619697 by josgarithmetic(39618)![]() ![]() ![]() You can put this solution on YOUR website! * Let x be the mass in kilograms of the pure, 100% peat moss to add.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Equation for the resulting 15% peat moss in mixture \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Equation for the resulting 15% vermiculite in mixture \n" ); document.write( " \n" ); document.write( "The trouble here is adding x kilograms of peat moss will only DILUTE the \n" ); document.write( "concentration of vermiculite, so the problem description WILL NOT WORK and therefore \n" ); document.write( "has NO SOLUTION.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "* The real question is, how much peat moss AND how much vermiculite must be added to reach 15% for each of them?\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "VARIABLES: x for peat moss, y for vermiculite.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The peat moss & vermiculite system of equations will be \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Now, if you can solve that system for x and y, you will be all set. Most important is to be able to formulate those equations of the system. \n" ); document.write( " |