document.write( "Question 634835: A girl has 7 coins of different denominations. How many different sums of money can she form using 2 coins at a time? \n" ); document.write( "
Algebra.Com's Answer #399917 by richwmiller(17219)![]() ![]() You can put this solution on YOUR website! the first coin can be any of 7 the second coin can be any of 6 \n" ); document.write( "7*6=42 sums assuming none can be duplicated. \n" ); document.write( " |