document.write( "Question 288540: Betty has 10 more dimes than quarters. If she has $3.45, how many coins does she have? \n" ); document.write( "
Algebra.Com's Answer #209141 by mananth(16946)![]() ![]() You can put this solution on YOUR website! let her haave x quarters\r \n" ); document.write( "\n" ); document.write( "she will have x+10 dimes\r \n" ); document.write( "\n" ); document.write( "25x+10(x+10)= 345 cents\r \n" ); document.write( "\n" ); document.write( "25x+10x+100=345\r \n" ); document.write( "\n" ); document.write( "35x=345-100\r \n" ); document.write( "\n" ); document.write( "35x=245\r \n" ); document.write( "\n" ); document.write( "x= 7 ------ quarters\r \n" ); document.write( "\n" ); document.write( "y= x+10 = 7+10 = 17 dimes \n" ); document.write( " |