document.write( "Question 899493: a coin bank conatins fifty coins in dimes and quarters. the coins have a total value of $8.60. find the number of dimes in the bank \n" ); document.write( "
Algebra.Com's Answer #545447 by richwmiller(17219)![]() ![]() You can put this solution on YOUR website! d+q=50, \n" ); document.write( "10*d+25*q=860 \n" ); document.write( "d=50-q \n" ); document.write( "10*(50-q)+25*q=860 \n" ); document.write( "500-10q+25*q=860 \n" ); document.write( "15*q=360 \n" ); document.write( "q=24 \n" ); document.write( "d=50-q \n" ); document.write( "d=26 q=24 \n" ); document.write( "check \n" ); document.write( "26+24=50 \n" ); document.write( "10*d+25*q=860 \n" ); document.write( "10*26+25*24=860 \n" ); document.write( "260+600=860 \n" ); document.write( "860=860 \n" ); document.write( "ok\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |