document.write( "Question 358722: You have 14 coins (nickels & dimes) that = $0.90. How many of each coins do you have? I need an algebraic equation to figure it out.
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document.write( "I tried:
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document.write( "14 (n+2n) = .90
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document.write( "thinking n would be the nickels & 2n would be the dimes... but that really doesn't make much sense.
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document.write( "Thanks for your help... AMS \n" );
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Algebra.Com's Answer #256012 by nyc_function(2741) You can put this solution on YOUR website! You have not been able to solve it because this problem is actually a system of linear equations in two variables.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Let n = nickels\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Let d = dimes\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "n + d = 14 \n" ); document.write( "0.05n + 0.10d = 0.90\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Use the substitution method to find your answer.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Can you take it from here?\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |