document.write( "Question 291019: A box contains $6.25 in nickels, dimes, and quarters. There are 85 coins in all, with three times as many nickels as dimes. How many quarters are there. \n" ); document.write( "
Algebra.Com's Answer #210569 by Greenfinch(383)![]() ![]() You can put this solution on YOUR website! no of dimes is X, no of nickels is 3X, no of quarters is 85 - 4X \n" ); document.write( "so 10X + (3Xx5) + (85 - 4x)x25 = 625 (do it all in cents) \n" ); document.write( "10X + 15X + 2125 -100X = 625 \n" ); document.write( "-75X = -1500 \n" ); document.write( "X = 20, \n" ); document.write( "so 20 dimes, 60 nickels and 5 quarters \n" ); document.write( "To check 20 x 10 = 200 \n" ); document.write( "60 x 5 = 300 \n" ); document.write( "5 x 25 = 125 \n" ); document.write( "total = 625 or $6.25 \n" ); document.write( " |