document.write( "Question 1078702: Lucy has 8 coins, all of which are quarters and dimes. In all, they're worth $1.55. How many of each kind of coin does Lucy have? \n" ); document.write( "
Algebra.Com's Answer #693092 by Alan3354(69443) You can put this solution on YOUR website! Lucy has 8 coins, all of which are quarters and dimes. In all, they're worth $1.55. How many of each kind of coin does Lucy have? \n" ); document.write( "------- \n" ); document.write( "Q + D = 8 (# of coins) \n" ); document.write( "25Q + 10D = 155 (value) \n" ); document.write( "=================== \n" ); document.write( "Think about it: \n" ); document.write( "The # of Q's has to be an odd # < 8. \n" ); document.write( "7Q = 175 too much \n" ); document.write( "5Q = 125 \n" ); document.write( "3D = 30 \n" ); document.write( "---------------- \n" ); document.write( "--> $1.55 \n" ); document.write( " |