There is a  mystery currency. 27.90 dollars is equal to 400 of this currency. how many dollars is 100 of it?

To solve this, we need to determine the value of 100 units of the mystery currency in dollars.

Given:
- 27.90 dollars = 400 units of the mystery currency.

First, let's find the value of 1 unit of the mystery currency in dollars:

\[
\text{Value of 1 unit in dollars} = \frac{27.90 \text{ dollars}}{400} = 0.06975 \text{ dollars per unit}
\]

Now, to find the value of 100 units:

\[
\text{Value of 100 units in dollars} = 0.06975 \times 100 = 6.975 \text{ dollars}
\]

So, 100 units of the mystery currency is equal to **6.975 dollars**.

Would you like to go over any details or have any questions? Here are some related questions:

1. What would be the value of 50 units of the mystery currency in dollars?
2. How many units of the mystery currency would 10 dollars be equivalent to?
3. If the exchange rate changes, how would you calculate the new value of the mystery currency?
4. How would you set up an equation to find the value of any number of units of the mystery currency in dollars?
5. What if the mystery currency had a fluctuating value—how could you calculate an average value?

**Tip:** Always double-check your conversions by ensuring that the units cancel out correctly.

Learn how to convert between dollars and a mystery currency with this detailed explanation. Given an exchange rate of 27.90 dollars = 400 units of the mystery currency, find out how many dollars 100 units of the mystery currency are worth. Explore related questions and scenarios in currency conversion.

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