document.write( "Question 872609: A collection is made of ten new penny pieces and five new penny pieces. There are 25 more ten new penny pieces than five new penny pieces, and the value of the collection is $4.75. Find the number of ten new penny pieces. \n" ); document.write( "
Algebra.Com's Answer #526254 by indra89811(24)![]() ![]() You can put this solution on YOUR website! No. of ten new penny pieces = T \n" ); document.write( "No. of five new penny pieces = F\r \n" ); document.write( "\n" ); document.write( "There are 25 more ten new penny pieces than five new penny pieces implies : \r \n" ); document.write( "\n" ); document.write( "T=F+25-----(1)\r \n" ); document.write( "\n" ); document.write( "The value of the collection is $4.75 denotes :\r \n" ); document.write( "\n" ); document.write( "0.05 F + 0.10 T = 4.75---(2)\r \n" ); document.write( "\n" ); document.write( "Plugging in T=F+25 in equation (2) \r \n" ); document.write( "\n" ); document.write( "0.05F + 0.1(F+25) = 4.75\r \n" ); document.write( "\n" ); document.write( "0.05F + 0.1F + 2.5 = 4.75\r \n" ); document.write( "\n" ); document.write( "0.15 F = 2.25\r \n" ); document.write( "\n" ); document.write( "F=2.25/15\r \n" ); document.write( "\n" ); document.write( "F=15\r \n" ); document.write( "\n" ); document.write( "Plugging in F = 15 in equation (1) \r \n" ); document.write( "\n" ); document.write( "t + 25 + 15 = 40\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Therefore, there are 40 new ten penny pieces and 15 new five penny pieces. \n" ); document.write( " \n" ); document.write( " |