document.write( "Question 1023930: Katie has a collection of nickels, dimes and quarters with a total value of
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document.write( "$7.05 There are 7 more dimes than nickels and 3 more quarters than nickels, how many of each coin does she have? \n" );
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Algebra.Com's Answer #804052 by CubeyThePenguin(3113)![]() ![]() You can put this solution on YOUR website! n = number of nickels \n" ); document.write( "d = number of dimes \n" ); document.write( "q = number of quarters\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "d = n + 7 \n" ); document.write( "q = n + 3 \n" ); document.write( "5n + 10d + 25q = 705\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Write everything in terms of n.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "5n + 10(n + 7) + 25(n + 3) = 705 \n" ); document.write( "5n + 10n + 70 + 25n + 75 = 705 \n" ); document.write( "40n + 145 = 705 \n" ); document.write( "40n = 560 \n" ); document.write( "n = 14\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Katie has 14 nickels, 21 dimes, and 17 quarters. \n" ); document.write( " |