i have 2 aus. coins in my pocket totalling 15 cents, but 1 coin is not a ten cent piece. how can this be???
604316
One coin is not a ten-cent piece, but the other one is.  You have a 5- and a 10-cent piece.
730990
You would have to take it to a coin dealer to find out. They can grade its condition and look it up. Chances are, it isn't worth more than 25 cents, but it is worth at least a penny!
1122452
depnds on its condition.....look up coin prices...if in good condition probably about $3 or so..if in almsot uncirculated $16...now if it happend to be a real 1937D 3 legged...almost uncirc  $1525....but those are rare.  yrous is probalby the $3 variety
181899
It depends where your coin is from. If it is from the United States, try www.pcgs.com. They have a pricing guide, updated daily, and information to help you determine which coin you have. Good luck!
187532
I recommend the Professional Coin Grading Service. They give good information on how coins are graded, how to work out which coin you have, as well as prices (updated daily). Good luck!
1081846
If it's a Canadian $100 gold coin, the face value of it is $100 CDN if you choose to spend it.\n\nWhat you're looking for is it's numismatic value, and that can vary based on the age, condition and rarity of the coin.\n\nWhat year was the coin minted? Has the coin ever been used? Was there any mistakes when the coin was minted -- that is, was it double-struck (struck twice)? Does Her Majesty face the wrong way compared to the regular issue? etcetera.\n\nYour best answers are not on the Web. A good coin dealer in your town can assay (figure out the value) of your coin and (probably) quote you a fair price.\n\nBut if the Web way's the only way for you, seek on Yahoo the following search terms\n\n<year> 100 Canada gold coin Queen Elizabeth Silver Jubilee\n\nand ye shall find.\n\nGood luck, Cincypix.
620522
A quarter and a nickel.  You said that one wasn't a nickel, but the other one could be.
204477
I do not know the value of this coin, but, it sounds like coins I have seen from China. Hope this fact helps narrow your search.
719127
Well you got a quarter and a nickel.  Because one of the coins is not a nickel, it is a quarter.  So the other one is a nickel.  Hehehe.... Good one.
394828
Is this the penny you have?  http://www.australianstamp.com/coin-web/aust/penny/19451pen.htm\n\nI don't know what condition it is in, so you would have to decide that or take it to someone that collects coins and would know.  You might be able to find some interesting info here: http://www.coinvaluesonline.com/content.asp?content=home&visitor={219B2B0A-B1B0-4B43-9078-A8C0B8AAA2E0}
977563
You need to give us a problem, but let's say the problem was:\n\nYou have ten coins (dimes or nickels) and they add up to 65 cents...\n\nYou could guess that you have 5 dimes and 5 nickels:\nGuess:\n5 dimes, 5 nickels\nCheck\n75 cents <-- too high\n\nSo try guessing 4 dimes and 6 nickels:\nGuess:\n4 dimes, 6 nickels\nCheck:\n70 cents <-- still too high\n\nFinally try guessing 3 dimes and 7 nickels:\nGuess:\n3 dimes, 7 nickels:\nCheck\n65 cents <-- correct answer.
406838
It depends on the form of the gold...gold coins: find a reputable coin dealer in your area.
641522
There is a place in Nevada the town of Dayton that has a mint that may do something like this they were called Medallic, though I don't think the prices will be exactly to your liking.... I can't advertise here but my husband could do this..... Don't know what to do about this situation... My understanding is that you want 10,000 coins that way 1 gram each made of gold, easy enough once the logo is cut into the proper die.....if you want let me know I guess and I will turn on my email address for you.... but I am not certain of how this should work here.... if you are serious. I will leave this address open for two days
1009854
The values of 1909 pennies vary greatly depending on whether or not they have an s mint mark and vdb on the penny.  And the condition of the coin.  Go to this site to find the current values.\nRemember condition is important.
347616
Because the $1 Bill is King!  There is no other possible reason.  It should be easier to use $2 Bills since they would take up less room.  Plus, the time saved in counting $1 bills in your pocket and to make change would be worth millions!  Not to mention the reduced cost to the government by producing fewer $1 bills.\n\nThis also answers the question:  "Why is the $1 COIN not popular?".  Because the $1 Bill is King - and therefore the vending machine companies will not pay to change over their machines - which would be essential to making a coin viable.  The bottom line is that no one wants a coin - or a $2 bill!\n\nBoth have worked remarkably well in Canada which had an identical coinage and bill system until recently.  They moved to a $1 coin, then after this was a hit they added a $2 coin.  The equivalent bills were phased out and everyone has been happy.  The difference was that the vending companies were quick to recognize the benefits of adapting their machines - those bill readers are nothing but trouble!
293931
This problem was fun and took me a few minutes to realise the solution.  First I will restate the problem just for clarification.\n\nWe have 12 coins, one of which is fake (lighter or heavier).  We can only make 3 weight comparisons to discover which of the coins is the fake one.  My solution will tell you which coin is fake and if it is heavy or light in exactly 3 comparisons.\n\nI number the coins 1 - 12 and make the following 3 comparisons on a scale\n\nleft    vs   right\n-------------------\n1 2 3 10  vs  4 5 6 11\n1 2 3 11  vs  7 8 9 10\n1 4 7 10  vs  2 5 8 12\n\nnow I know which coin is false.  How do I do this? well I created a table which has 12 unique outcomes of 3 weighing comparisons on which side of the scale went down. for example left left left indicates that all 3 comparisons had the left side dropped.  Here is my table:\n\nfake coin  | correspondin weight comparisons\n--------------------------------------------\n1          |  left left left (heavy) or right right right (light)\n2          |  left left right (heavy) or right right left (light)\n3          |  left left balanced (heavy) or right right balanced (light)\n4          |  right balanced left (heavy) or left balanced right (light)\n5          |  right balanced right (heavy) or left balanced left (light)\n6          |  right balanced balanced (heavy) or left balanced balanced (light)\n7          |  balanced right left (heavy) or balanced left right (light)\n8          |  balanced right right (heavy) or balanced left left (light)\n9          |  balanced right balanced (heavy) or balanced left balanced (light)\n10         |  left right left (heavy) or right left right (light)\n11         |  right left balanced (heavy) or left right balanced (light)\n12         |  balanced balanced right (heavy) or balanced balanced left (light)\n\nnow I can find exactly which coin was the fake one by comparing the results of my 3 wieghs against my table. For example if I get two balances and then a right, I know the 12 coin is the fake and is heavy. Note that if I get balanced balanced left the the 12 coin is light.\n\nNotice that I first created this table of possible outcomes and then generated from it which coins would be compared against which. \n\nHeavy or Light:  I created this table in which no result on any row is the reverse of any result on any other row (as the reverse indicates whether it is light or heavy)\n\nThis is the simplest solution to this problem.  I hope this made sense.  Was really fun.
449468
Take it to your bank and desposit it.  They'll hate you, but their legally obligated to take it, I hear.  That's what "all debts, public and private" means!\n\nAccording to the US Mint, a nickel weighs 5 grams even and a dime weighs 2.268 g.\n\n(Yes, purists, I know grams ain't weight, but "masses" ain't a word!)\n\nKeep in mind your numbers have only one significant digit!  (i.e., if you want better accuracy, I need numbers more accurate than "20" and "30".  How about "21.3" or something?)  Playing with the numbers gives us:\n\nNickels:  ~2000, or $100\nDimes:  ~4000, or $400