You are watching: 293 ways to make change for a dollar
Click here to check out ALL difficulties on Word problems With CoinsQuestion 152564: how plenty of ways to make adjust for one dollar using nickels, dimes and quarters uncovered 3 solutions by Edwin McCravy, pmr2teach, richard1234:Answer by Edwin McCravy(18820) (Show Source): You deserve to put this systems on her website! We have the right to use either 0, 1, 2, 3, or 4 quarters.If we usage 0 quarters, we deserve to use from 0 approximately 10 dimes,and the rest, if any, in nickels. That accounts because that 11 ways.If we usage 1 quarter, we have the right to use from 0 up to 7 dimes,and the remainder in nickels. That accounts because that 8 ways.If we usage 2 quarters, we have the right to use from 0 as much as 5 dimes,and the rest, if any, in nickels. The accounts for 6 ways.If we usage 3 quarters, we deserve to use from 0 approximately 2 dimes,and the rest in nickels. That accounts because that 3 ways. If we usage 4 quarters, that"s the totality dollar, so that accountsfor 1 way.So the total number of ways = 11+8+6+3+1 = 29 friend weren"t request to perform them, however here is the list of every 29 ways: 1. 0 quarters, 0 dimes, and 20 nickels. 2. 0 quarters, 1 dime, and also 18 nickels. 3. 0 quarters, 2 dimes, and 16 nickels. 4. 0 quarters, 3 dimes, and 14 nickels. 5. 0 quarters, 4 dimes, and also 12 nickels. 6. 0 quarters, 5 dimes, and 10 nickels. 7. 0 quarters, 6 dimes, and also 8 nickels. 8. 0 quarters, 7 dimes, and 6 nickels. 9. 0 quarters, 8 dimes, and also 4 nickels.10. 0 quarters, 9 dimes, and also 2 nickels.11. 0 quarters, 10 dimes, and also 0 nickels.12. 1 quarter, 0 dimes, and 15 nickels.13. 1 quarter, 1 dime, and 13 nickels.14. 1 quarter, 2 dimes, and also 11 nickels.15. 1 quarter, 3 dimes, and also 9 nickels.16. 1 quarter, 4 dimes, and 7 nickels.17. 1 quarter, 5 dimes, and 5 nickels.18. 1 quarter, 6 dimes, and also 3 nickels.19. 1 quarter, 7 dimes, and 1 nickel.20. 2 quarters, 0 dimes, and also 10 nickels.21. 2 quarters, 1 dime, and 8 nickels.22. 2 quarters, 2 dimes, and 6 nickels.23. 2 quarters, 3 dimes, and 4 nickels.24. 2 quarters, 4 dimes, and 2 nickels.25. 2 quarters, 5 dimes, and 0 nickels.26. 3 quarters, 0 dimes, and 5 nickels.27. 3 quarters, 1 dime, and also 3 nickels.28. 3 quarters, 2 dimes, and 1 nickel.29. 4 quarters, 0 dimes, and 0 nickels.Edwin answer by pmr2teach(1)
(Show Source): You have the right to put this equipment on your website! actually there room over 293 ways to use coins to make a dollar!!!!They space as follows: 1 dissension coin 2 fifty percent dollars 1 HD 2Q 1 HD 1Q 2D IN 1 HD 1Q 2D 5P 1 HD 1Q 1D 3N 1 HD 1Q 1D 2N 5P 1 HD 1Q 1D 1N 10P 1 HD 1Q 1D 15P 1 HD 1Q 5N 1 HD 1Q 4N 5P 1 HD 1Q 3N 10P 1 HD 1Q 2N 15P 1 HD 1Q 1N 20P 1 HD 1Q 25P 1 HD 5D 1 HD 4D 2N 1 HD 4D 1N 5P 1 HD 4D 10P 1 HD 3D 4N 1 HD 3D 3N 5P 1 HD 3D 2N 10P 1 HD 3D 1N 15P 1 HD 3D 20P 1 HD 2D 6N 1 HD 2D 5N 5P 1 HD 2D 4N 10P 1 HD 2D 3N 15P 1 HD 2D 2N 20P 1 HD 2D 1N 25P 1 HD 2D 30P 1 HD 1D 8N 1 HD 1D 7N 5P 1 HD 1D 6N 10P 1 HD 1D 5N 15P 1 HD 1D 4N 20P 1 HD 1D 3N 25 p 1 HD 1D 2N 30 ns 1 HD 1D 1N 35P 1 HD 1D 40P 1 HD 10N 1 HD 9N 5P 1 HD 8N 10P 1 HD 7N 15P 1 HD 6N 20P 1 HD 5N 25P 1 HD 4N 30P 1 HD 3N 35P 1 HD 2N 40P 1 HD 1N 45P 1 HD 50P 4Q 3Q 2D 1N 3Q 2D 5P 3Q 1D 3N 3Q 1D 2N 5P 3Q 1D 1N 10P 3Q 1D 15P 3Q 5N 3Q 4N 5P 3Q 3N 10P 3Q 2N 15P 3Q 1N 20P 3Q 25P 2Q 5D 2Q 4D 2N 2Q 4D 1N 5P 2Q 4D 10P 2Q 3D 4N 2Q 3D 3N 5P 2Q 3D 2N 10P 2Q 3D 1N 15P 2Q 3D 20P 2Q 2D 6N 2Q 2D 5N 5P 2Q 2D 4N 10P 2Q 2D 3N 15P 2Q 2D 2N 20P 2Q 2D 1N 25P 2Q 2D 30P 2Q 1D 8N 2Q 1D 7N 5P 2Q 1D 6N 10P 2Q 1D 5N 15P 2Q 1D 4N 20P 2Q 1D 3N 25P 2Q 1D 2N 30P 2Q 1D 1N 35P 2Q 1D 40P 2Q 50P 2Q 10N 2Q 9N 5P 2Q 8N 10P 2Q 7N 15P 2Q 6N 20P 2Q 5N 25P 2Q 4N 30P 2Q 3N 35P 2Q 2N 40P 2Q 1N 45P 1Q 7D 1N 1Q 7D 5P 1Q 6D 3N 1Q 6D 2N 5P 1Q 6D 1N 10P 1Q 6D 15P 1Q 5D 5N 1Q 5D 4N 5P 1Q 5D 3N 10P 1Q 5D 2N 15P 1Q 5D 1N 20P 1Q 5D 25P 1Q 4D 7N 1Q 4D 6N 5P 1Q 4D 5N 15P 1Q 4D 4N 20P 1Q 4D 3N 25P 1Q 4D 2N 30P 1Q 4D 1N 35P 1Q 4D 40P 1Q 3D 9N 1Q 3D 8N 5P 1Q 3D 7N 10P 1Q 3D 6N 15P 1Q 3D 5N 20P 1Q 3D 4N 25P 1Q 3D 3N 30P 1Q 3D 2N 35P 1Q 3D 1N 40P 1Q 3D 45P 1Q 2D 11N 1Q 2D 10N 5P 1Q 2D 9N 10P 1Q 2D 8N 15P 1Q 2D 7N 20P 1Q 2D 6N 25P 1Q 2D 5N 30P 1Q 2D 4N 35P 1Q 2D 3N 40P 1Q 2D 2N 45P 1Q 2D 1N 50P 1Q 2D 55P 1Q 1D 13N 1Q 1D 12N 5P 1Q 1D 11N 10P 1Q 1D 10N 15P 1Q 1D 9N 20P 1Q 1D 8N 25P 1Q 1D 7N 30P 1Q 1D 6N 35P 1Q 1D 5N 40P 1Q 1D 4N 45P 1Q 1D 3N 50P 1Q 1D 2N 55P 1Q 1D 1N 60P 1Q 1D 65P 1Q 15N 1Q 14N 5P 1Q 13N 10P 1Q 12N 15P 1Q 11N 20P 1Q 10N 25P 1Q 9N 30P 1Q 8N 35P 1Q 7N 40P 1Q 6N 45P 1Q 5N 50P 1Q 4N 55P 1Q 3N 60P 1Q 2N 65P 1Q 1N 70P 1Q 75P 10D 9D 2N 9D 1N 5P 9D 10P 8D 4N 8D 3N 5P 8D 2N 10P 8D 1N 15P 8D 20P 7D 6N 7D 5N 5P 7D 4N 10P 7D 3N 15P 7D 2N 20P 7D 1N 25P 7D 30P 6D 8N 6D 7N 5P 6D 6N 10P 6D 5N 15P 6D 4N 20P 6D 3N 25P 6D 2N 30P 6D 1N 35P 6D 40P 5D 10N 5D 9N 5P 5D 8N 10P 5D 7N 15P 5D 6N 20P 5D 5N 25P 5D 4N 30P 5D 3N 35P 5D 2N 40P 5D 1N 45P 5D 50P 4D 12N 4D 11N 5P 4D 10N 10P 4D 9N 15P 4D 8N 20P 4D 7N 25P 4D 6N 30P 4D 5N 35P 4D 4N 40P 4D 3N 45P 4D 2N 50P 4D 1N 55P 4D 60P 3D 14N 3D 13N 5P 3D 12N 10P 3D 11N 15P 3D 10N 20P 3D 9N 25P 3D 8N 30P 3D 7N 35P 3D 6N 40P 3D 5N 45P 3D 4N 50P 3D 3N 55P 3D 2N 60P 3D 1N 65P 3D 70P 2D 16N 2D 15N 5P 2D 14N 10P 2D 13N 15P 2D 12N 20P 2D 11N 25P 2D 10N 30P 2D 9N 35P 2D 8N 40P 2D 7N 45P 2D 6N 50P 2D 5N 55P 2D 4N 60P 2D 3N 65P 2D 2N 70P 2D 1N 75P 2D 80P 1D 18N 1D 17N 5P 1D 16N 10P 1D 15N 15P 1D 14N 20P 1D 13N 25P 1D 12N 30P 1D 11N 35P 1D 10N 40P 1D 9N 45P 1D 8N 50P 1D 7N 55P 1D 6N 60P 1D 5N 65P 1D 4N 70P 1D 3N 75P 1D 2N 80P 1D 1N 85P 1D 90P 20N 19N 5P 18N 10P 17N 15P 16N 20P 15N 25P 14N 30P 13N 35P 12N 40P 11N 45P 10N 50P 9N 55P 8N 60P 7N 65P 6N 70P 5N 75P 4N 80P 3N 85P 2N 90P 1N 95P 100PRead more: http://wiki.answers.com/Q/How_many_ways_to_make_change_for_a_dollar#ixzz1IfkbKEMU prize by richard1234(7193) (Show Source): You deserve to put this systems on your website! You have the right to compute the variety of ways come make change for $1 using a bijection. We let n, d, q it is in the number of nickels, dimes, and also quarters, and also , which indicates . Hence, this is indistinguishable to recognize the number of ways to do 20 "cents" making use of one-, two-, and also five-cent pieces.Suppose we want to discover the number of ways to make 20 cent *without* utilizing a 5 cent piece.Case 0: we wish to do 0 cents --> 1 method (just use no coins)Case 1: us wish to do 1 cent --> 1 method 2*0 + 1*1Case 2: we wish to do 2 cent --> 2 means 2*1 + 1*0; 2*0 + 1*2Case 3: us wish to make 3 cents --> 2 ways 2*1 + 1*1; 2*0 + 1*3Case 4: us wish to make 4 cent --> 3 means 2*2 + 1*0; 2*1 + 1*2, 2*0 + 1*4Case 5: we wish to make 5 cents --> 3 ways 2*2 + 1*1, 2*1 + 1*3, 2*0 + 1*5We can prove utilizing either induction or modular arithmetic the the number of ways to make n cents in this method is , where denotes the floor value of x. We can evaluate this in ~ n = 20 to gain , or 11.Similarly, we have the right to count the variety of ways to attain 20 cents making use of one five-cent piece. However, we can subtract turn off the five-cent piece and say that this is analogous to computing the number of ways to attain 15 cents. Hence, this is same to .For 10, 5, and also 0 cents, we have actually , and also . Therefore the total number of ways is 11 + 8 + 6 + 3 + 1 = 29 ways.Note: the various other tutor count 293 ways, however this contained pennies and fifty percent dollars, which was not proclaimed in the question. To counting the number of ways making use of pennies, nickels, dimes, and also quarters, you can also use a bijection, yet instead of counting the number of ways to acquire 20 cents, you evaluate at 20, 19, 18, ..., 0 because this will certainly uniquely determine the variety of pennies.
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We do the exact same with 15, 10, 5, and 0 to acquire sums:Then, if friend want half dollars involved, the is equal to wherein is the variety of ways to make a dollar using i fifty percent dollars, equivalently, the variety of ways to do 50 cents and 0 cent without half dollars (here you should gain 293!).