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.
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.
they were made that way
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.
One kilogram is about 2.2 pounds. Therefore, a kilogram of dimes is worth more than twice than a pound of dimes.
More than 25.
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!
My two cents is worth more than a million dollars.
A kilogram is about 2.2 pounds , a kg. of dimes would be worth 2.2 times more than a lb.
If you got it from change, no. If it has the mintmark "S" it's worth more than 25 cents.
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.