document.write( "Question 904707: Madeline has 60 coins some are quarters the rest are half dollars total value of coins is $19.50 how many of each denominations does she have? \n" ); document.write( "
Algebra.Com's Answer #548859 by richwmiller(17219)![]() ![]() You can put this solution on YOUR website! h+q=60, \n" ); document.write( "50*h+25*q=1950 \n" ); document.write( "h=60-q \n" ); document.write( "50*(60-q)+25*q=1950 \n" ); document.write( "3000-50q+25*q=1950 \n" ); document.write( "-25*q=-1050 \n" ); document.write( "q=42 \n" ); document.write( "h=60-q \n" ); document.write( "h=18 at $.50 and q=42 at $.25 \n" ); document.write( "check \n" ); document.write( "18+42=60 \n" ); document.write( "50*h+25*q=1950 \n" ); document.write( "50*18+25*42=1950 \n" ); document.write( "900+1050=1950 \n" ); document.write( "1950=1950 \n" ); document.write( "ok \n" ); document.write( " \n" ); document.write( " |