Nothing. Mexicans and Mexican banks don't accept US change for any transaction. They only accept bills or credit card transactions.
Ideally, a penny is worth 11 Mexican cents or 'centavos'.
There is no silver in a 1990 US dime.
What is 1912 dime worth
A dime is worth 1/10 of a US dollar, or equivalently, 10 cents.
A US dime is 10 cents or 1/10 of a dollar.
A US dime dated 1944 is a Mercury head dime, it's very common with a value of $2.00 just for the silver.
A United States dime weighs 2.268 grams.
A US dime is worth either:ten penniestwo nickles
10 cents
The US dime produced in 1807 was known as a "Draped Bust" dime, and would not be mistaken for an Indian head. In fact, I am not aware of any US dime that could be referred to as an "Indian head" dime.
A US dime dated 1944 is a Mercury head dime, it's very common with a likely value of $2.00 just for the silver.
A US dime issued in 1906 would be a Barber Dime.
10 cents.