document.write( "Question 1120920: A student finds a pile of nickels and dimes, and immediately announces \"I found two dollars and fifteen cents!\" If the number of dimes is 4 more than the 3 times the number of nickels, how many of each coin did this student find?. \n" ); document.write( "
Algebra.Com's Answer #736603 by math_helper(2461)![]() ![]() You can put this solution on YOUR website! N=number of nickels \n" ); document.write( "D=number of dimes \n" ); document.write( "Then \n" ); document.write( "(1) 5N+10D = 215 \n" ); document.write( "(2) D = 4+3N \n" ); document.write( " \n" ); document.write( "Sub for D from (2) into (1): \n" ); document.write( "5N + 10(4+3N) = 215\r \n" ); document.write( "\n" ); document.write( "Solving, yields \n" ); document.write( "—— \n" ); document.write( "Check: 5(5) + 10(19) = 25+190 = 215 (ok) \n" ); document.write( " and 4+3(5) = 4+15 = 19 (ok) \n" ); document.write( " |