document.write( "Question 955197: A newspaper carrier has $4.90 in change. He has five more quarters than dimes but five times as many nickels as quarters. How many coins of each type does he have? \n" ); document.write( "
Algebra.Com's Answer #808350 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( "5n + 10d + 25q = 490 \n" ); document.write( "q = d + 5 \n" ); document.write( "n = 5q\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Write everything in terms of d.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "5(5(d+5)) + 10d + 25(d+5) = 490 \n" ); document.write( "25d + 125 + 10d + 25d + 125 = 490 \n" ); document.write( "60d = 240 \n" ); document.write( "d = 4\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "There are 45 nickels, 4 dimes, and 9 quarters. \n" ); document.write( " |