document.write( "Question 878532: My daughter has to come up with 40 ways to make 48 cents using only 3 or 8 pennies. She has come up with 39 but can't figure out the last one. \n" ); document.write( "
| Algebra.Com's Answer #530011 by josgarithmetic(39630)      You can put this solution on YOUR website! The description might really be a counting-principles exercise, but I believe that the need for forty ways is wrong.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Using only 3 pennies puts certain restrictions on the number of nickels, dimes, and quarters. Using only 8 pennies puts certain restrictions on the number of nickels, dimes, and quarters. \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Using a tree diagram approach to check possible combinations which give 48 cents will give far, far fewer than forty ways. \n" ); document.write( " |