Currency conversion is all about changing one currency into another. It's like swapping yen for dollars or vice versa. But, how do we know how much to swap? Well, that's where the exchange rate comes in. Think of the exchange rate as a bridge between two different currencies. In our exercise, the exchange rate is 1 dollar equals 129 yen. This means if you have 1 dollar, you can exchange it for 129 yen.
Here's how it works practically:
- Start with the given currency, such as yen.
- Use the exchange rate to "cross the bridge" to the other currency, like dollars.
- Divide the amount you have by the exchange rate for conversion.
So, if a good in Japan costs 7,740 yen, you use the given rate (129 yen per dollar) and divide the yen amount by 129 to find its equivalent in dollars. This process helps you understand how much a product costs in your own currency without any mental leaps.