How much is 10 pesos in american money?

10 pesos in america is one dollar

At least a half-dozen countries use pesos as their currency and each has a different conversion rate versus the US dollar.

If you're referring to Mexican pesos, the exchange rate has been around 13 or 14 = US$1 during 2011-2012. However exchange rates change every day so a more specific answer posted here would be out of date almost immediately.

While it's not normal WikiAnswers policy to say "use the internet", that's the best approach in this case. You can check a site such as www.xe.com, CNNMoney, etc. for the latest conversion factors.