U.S. cents were never struck in silver. Specifically, all 1920 cents were made of bronze. If your coin is silver-colored it was plated for use in jewelry or something similar. That makes it an altered coin with no numismatic value.
Genuine $20 (double eagle) gold coins are 90% gold and 10% copper. These coins contain nearly a troy ounce worth of gold in them (about $1350 or so in gold at the time of writing) and so even in the worst condition they'd be worth the $1350 worth of gold.
Better-grade and better-date coins will be worth more. Generally speaking, a St. Gaudens double eagle will be worth more than a Liberty Head double eagle when both are in the same condition and the same rarity, however the date, mintmark and condition play a huge role in the value of these coins.
Keep in mind though that there are many fakes and replicas out there. A reputable coin dealer can identify if you've got a genuine or fake coin with ease though.
A pound (not troy pound, but just a normal pound) of 90% pure silver dimes would get you about 13.122 troy ounces of pure silver. At current silver prices of $33 a troy ounce, that would get you about $433 in just pure melt. Keep in mind that there are coins which are worth more to collectors than just pure melt values however.
Silver coins are 90% silver with 10% copper. As of 15 June 2012 silver is worth $28.65/oz. With 16 ounces in a pound, times 22.5 lbs (90% of 25), and the total silver value is $10,314. In case you're interested, that leaves 2.5 lbs of copper at a present market price of $3.36/lb, giving you an additional $8.40 worth of copper.
Precious-metal prices change every day so any specific answer posted here becomes out of date almost immediately.
In any case silver (and gold) are priced by an unusual unit called a troy ounce so 200 lb has to be converted first. A quick look at a conversion table gives the value 1 US pound = 14.5833 troy oz, so 200 US pounds would be 14.5833*200 = 2916.66 troy oz. Finally, check a site such as kitco.com, CNNMoney, etc. for the latest spot price of silver and multiply the two. For example if the daily price is $12.53 per troy oz, the total value would be $12.53 * 2916.66 = $36,545.75
about 400 dollars
$56,888
$120 or $20 a pound
Modern (i.e. 1965 and later) US dimes weigh 2.27 gm each which is 0.08 oz. That means 200 dimes weigh about one US pound, so 10 lbs would be 2000 dimes or $20.
One pound of U.S. dollars is equal to $490.00USD. 20 pounds of dimes equals $400.00USD. 30 pounds of nickels is equal to $136.00USD.
100 pennies 10 dimes 20 nickels 4 quarters
it would be worth 80 pounds. I think it would be worth 250 pounds today.
20 million pounds in 1833 would be worth aproximately 1.25billion pounds today (2014)
20 millions pounds
20 million pounds
31.4380 US dollars
$20 or 200 dimes
$20 or 200 dimes
There are 20 nickels in a $2.00 roll of coins. There are 50 dimes in a $5.00 roll of dimes, and there are 50 pennies in a $0.50 roll of pennies.