document.write( "Question 1187432: My piggy bank has 28 coins in it that are only nickels, dimes, and quarters. I have $3.25 total.
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Algebra.Com's Answer #818411 by ikleyn(52790)\"\" \"About 
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\n" ); document.write( "My piggy bank has 28 coins in it that are only nickels, dimes, and quarters. I have $3.25 total.
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\n" ); document.write( "\n" ); document.write( "            My loving/preferable method is different.\r
\n" ); document.write( "\n" ); document.write( "            It uses only one unknown and only one single equation.\r
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document.write( "Let  x  be the number of nickels.\r\n" );
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document.write( "Then the number of quarters is  (x-1) and the number of dimes is (28-x - (x-1)) = 29-2x.\r\n" );
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document.write( "Now write the total money equation \r\n" );
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document.write( "    5x + 10*(29-2x) + 25*(x-1) = 325   cents.\r\n" );
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document.write( "Simplify and find x\r\n" );
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document.write( "    5x - 20x + 25x = 325 - 10*29 + 25\r\n" );
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document.write( "         10x       =       60\r\n" );
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document.write( "           x       =       60/10 = 6.\r\n" );
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document.write( "ANSWER.  6 nickels, 6-1 = 5 quarters and the rest coins, 28 - 6 - 5 = 17, are dimes.\r\n" );
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\n" ); document.write( "\n" ); document.write( "Solved  (without using any systems of algebraic equations),  at the level,\r
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\n" ); document.write( "\n" ); document.write( "If you want to see million other similar  (and different)  solved problems,  look into my lessons \r
\n" ); document.write( "\n" ); document.write( "    - Advanced word problems to solve using a single linear equation\r
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\n" ); document.write( "\n" ); document.write( "Consider these lessons as your textbook,  handbook,  guide,  tutorials and  (free of charge)  home teacher.\r
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\n" ); document.write( "\n" ); document.write( "Happy learning (!)\r
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