Any circulating US dime dated before 1965 is made of silver and is at least worth its melt value. Earlier designs of dimes such as the Mercury and Barber for the most part have some additional collector value.
Anything dated before 1965 is made of silver and currently at least worth over a dollar.
Unless they are in Brilliant Uncirculated condition (in which case they may be worth half a dollar or so), they are worth no more than ten cents.
Assuming that pennies means cents (why?) then yes.
No, dimes dated 1965 and later are not silver and unless in mint packaging are only worth 10 cents.
they were made that way
3 cents. It's an ordinary penny that was plated. The US has never made silver cents. Among other things they would have been worth more than dimes!
yes
There were over 856,000,000 of these dimes produced, assuming you don't have an error coin of some kind, these dimes are worth only ten cents, they are struck on cupro-nickel blanks just like dimes today are minted with and are not silver or any other metal worth more than face value.
More than 25.
A kilogram of dimes is worth more because it is larger in weight compared to a pound of dimes. The weight difference between a pound and a kilogram makes the kilogram of dimes more valuable.
Dimes dated 1965 and later are worth 10 cents if they came from change. Dimes dated 1964 and earlier are worth at least $1 for the silver they contain but many are worth much more than that as collectibles. You have to know their dates and mint marks though. If you have specific coins to value, please post new questions, one per date and mint mark.
1 cent. It's plated. Think about it for a few seconds - pennies are larger than dimes, so a silver penny would be worth more than 10 cents!
10 cents for the copper-nickel coin underneath and about a penny or 2 for the gold plating. The US never minted gold dimes - they'd be worth A LOT more than 10 cents, after all!