document.write( "Question 296046: Translate the problem into a pair of linear equations in two variables. Sove the equations using either elimination or substitution. State your answer for the specified variable.
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document.write( "I have 2 problems I need help with.
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document.write( "2) An orchard operator must dilute 11 quarts of a 60% insecticide solution by adding water. How many quarts of water should be added to get a mixture that is 2% insecticide? \n" );
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Algebra.Com's Answer #213372 by richwmiller(17219)![]() ![]() You can put this solution on YOUR website! Your problems are a great example for the website rules \n" ); document.write( "one problem at a time. Your problems belong in different categories. \n" ); document.write( "One is a distance problem and one is a mixture problem \n" ); document.write( "This can be solved from the view of the insecticide or from the view of the water \n" ); document.write( "First the insecticide. \n" ); document.write( "11*.6=(11+w)*.02 \n" ); document.write( "w=319 quarts of water \n" ); document.write( "Notice there is nothing added on the left. Why ? because water has 0% insecticide and 0*w=0 \n" ); document.write( "so from the view of the water. \n" ); document.write( "60% insecticide has 40 percent non insecticide. \n" ); document.write( ".4*11+w=(11+w)*.98 \n" ); document.write( "319 quarts of water \n" ); document.write( "Using both methods is a good check on your percentages. \n" ); document.write( "Let's say you put .2 instead of .02 the results would not match. \n" ); document.write( "That is quite a reduction from 60% to 2 percent. Are you sure that is right? not 20 percent? \n" ); document.write( " \n" ); document.write( " |