document.write( "Question 132459: Please help me solve this problem: Sanjay spent a long time searching for just the right birthday card for his mother. He narrowed his choice down to two different cards, a humorous one and a serious one. He finally decided to buy both for a total of $3.34. He gave the clerk $4.00. How many possible combinations of coins can you find for Sanjay's change? \r
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document.write( "I know that the change is $.66 and i can also use the fifty cent piece. But i have no clue what to do next... please help me.. \n" );
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Algebra.Com's Answer #96837 by josmiceli(19441)![]() ![]() You can put this solution on YOUR website! I don't have to know the exact amount of each combination, just \n" ); document.write( "how many combinations there are, so I can ignore the pennies, and \n" ); document.write( "just be aware that I'll need pennies to fill in the shortfalls \n" ); document.write( "when I have less that 66c \n" ); document.write( "nickels \n" ); document.write( "-------- \n" ); document.write( "(0-13) \n" ); document.write( "I can have no nickels up to 13 nickels. 14 nickels would make \n" ); document.write( " \n" ); document.write( "How many dimes can I possibly have with each of (0-13) nickels? \n" ); document.write( "and not exceed 66c?\r \n" ); document.write( "\n" ); document.write( "nickels dimes subtotal \n" ); document.write( "------- ----- -------- \n" ); document.write( "0 (1-6) 6 \n" ); document.write( "1 (1-6) 12 \n" ); document.write( "2 (1-5) 17 \n" ); document.write( "3 (1-5) 22 \n" ); document.write( "4 (1-4) 26 \n" ); document.write( "5 (1-4) 30 \n" ); document.write( "6 (1-3) 33 \n" ); document.write( "7 (1-3) 36 \n" ); document.write( "8 (1-2) 38 \n" ); document.write( "9 (1-2) 40 \n" ); document.write( "10 (1) 41 \n" ); document.write( "11 (1) 42 \n" ); document.write( "12 (0) \n" ); document.write( "13 (0) \n" ); document.write( "--------------- \n" ); document.write( "To tally up what I have so far, \n" ); document.write( "(1) (0 nickels, 66 pennies) \n" ); document.write( "(2) (1 nickel, 61 pennies) \n" ); document.write( ". . . . \n" ); document.write( "(14) (13 nickels, 1 penny) \n" ); document.write( "(15) (0 nickels, 1 dime, 56 pennies) \n" ); document.write( ". . . . \n" ); document.write( "(56) (11 nickels, 1 dime, 1 penny) \n" ); document.write( "--------------- \n" ); document.write( "Now I have to take into account the \n" ); document.write( "combinations that use quarters \n" ); document.write( "--------------- \n" ); document.write( "nickels dimes: (1) (2) (3) (4) \n" ); document.write( "------- ------------------------------ \n" ); document.write( "0 quarters: (1-2) (1) (1) (1) \n" ); document.write( "1 (1-2) (1) (1) (0) \n" ); document.write( "2 (1-2) (1) (1) \n" ); document.write( "3 (1) (1) (0) \n" ); document.write( "4 (1) (1) \n" ); document.write( "5 (1) (0) \n" ); document.write( "6 (1) \n" ); document.write( "7 (0) \n" ); document.write( "This table adds 19 more possibilities, bringing the \n" ); document.write( "subtotal to 75 \n" ); document.write( "--------------- \n" ); document.write( "Now for the 50c as part of the change: \n" ); document.write( "--------------- \n" ); document.write( "nickels dimes: (0) (1) \n" ); document.write( "------- ----------------- \n" ); document.write( "0 50c: (1) (1) \n" ); document.write( "1 (1) (1) \n" ); document.write( "2 (1) (0) \n" ); document.write( "3 (1) \n" ); document.write( "4 (0) \n" ); document.write( "--------------- \n" ); document.write( "This table sadds 6 more combinations. \n" ); document.write( "The final grand total is 81, unless I \n" ); document.write( "messed up somewhere. \n" ); document.write( " |