document.write( "Question 1097342: Kelly has a collection of nickels, dimes and quarters with a total value of
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document.write( "$10.40 There are 5 more dimes than nickels and 3 times more quarters than nickels, how many of each coin does she have? \n" );
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Algebra.Com's Answer #711753 by ikleyn(52777)![]() ![]() You can put this solution on YOUR website! . \n" ); document.write( " \r\n" ); document.write( "Let N be the number of nickels.\r\n" ); document.write( "\r\n" ); document.write( "Then the number of dimes is (N+5), and the number of quarters is 4N\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( " (in English, \"There are 3 times more quarters than nickels\" means that \r\n" ); document.write( " there are 4 times as many quarters as nickels (!!!) ).\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "So, your equation is\r\n" ); document.write( "\r\n" ); document.write( "5N + 10(N+5) + 25*(4N) = 1040 cents.\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "5N + 10N + 50 + 100N = 1040 ====>\r\n" ); document.write( "\r\n" ); document.write( "115N = 1040-50 = 990 ====> N =\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Next time be more attentive and more accurate.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Do not forget to send your \"Thanks\" to me.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |