500
The value of a 1975 5 peso coin from the Philippines can vary depending on its condition and rarity. In general, it may be worth around $1-3 USD to a collector or coin dealer.
It depends upon the "grade" of the coin (i.e., how much detail is left from when it was orginally stamped at the mint, whether it's "dinged" around the edges, etc...) and to whom you're selling it to! A badly worn 1948 5 peso coin is naturally not going to be worth much more than scrap silver prices, while a pristine MS-66 1948 5 peso coin with a "mint error" is going to be worth far more to a numismatic collector.
At todays value, I think it is about .055 cents. To start with its not a 5 dollar Mexican peso. Its a 5 peso coin which is absolete in Mexico today. Only value is its composition if silver could be worth as much as10 dollars.if not a few cents.
centigrams
Newtons
A 50 peso coin is essentially valueless, because the peso of 1984 was converted to a new peso currently in use, and older peso coins removed from circulation. A person who walks into a coin dealer in Mexico City can find these coins at low prices (one or two pesos, maybe 20 US cents) just because the artwork on the coin is of historical interest, but the occasional E-Bay posting of these coins with prices of $5 or $10 represents a huge markup on what is essentially a valueless (although pretty) coin.
It depends on the year, if you have a 5 Peso coin struck before 1992, it contains no magnetic material (copper-nickel, brass and silver are not magnetic), if you have a 1 peso coin dated 1984 or later it is magnetic because the coins are struck in steel and steel is magnetic.
3.42 Philippine peso
A Mexican five pesos coin from 1972 in very fine condition is worth about 60 cents. A coin in mint condition is worth up to $2.50.
There is no such thing as a "dollar peso". Mexico uses the "$" sign to mean peso, and they're 2 different currencies. Mexican currency was devalued in 1992 at the rate of 1000 old pesos to one new peso, so your coin is actually worth only 5 centavos at current rates. That's less than a penny.
There are about 11 pesos to a dollar. So your 5 peso coin is about 45 cents.