document.write( "Question 1001805: Jenna's pockets were heavy with coins. She had three times as many dimes as quarters, and 2 less nickels than dimes. If she had a total of $6.20, how many of each type of coin did she have? \n" ); document.write( "
Algebra.Com's Answer #805397 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( "q = 3d \n" ); document.write( "n = d - 2 \n" ); document.write( "5n + 10d + 25q = 620\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(d - 2) + 10d + 25(3d) = 620 \n" ); document.write( "5d - 10 + 10d + 75d = 620 \n" ); document.write( "90d = 630 \n" ); document.write( "d = 7\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "There were 5 nickels, 7 dimes, and 21 quarters. \n" ); document.write( " |