Question

In 2003, the exchange rate between the United states and Belgium was 140 Belgian francs to 4 U.S. Dollars. You have 120 U.S. Dollars to exchange. How many Belgian francs can you get in exchange?

Answer 1

4200 Belgian francs

Explanation:

Given that exchange rate is 140 Belgian francs to 4 U.S. Dollars.

which means, for 4 U.S. Dollars in exchange we get 140 Belgian francs.

Therefore, for each U.S. dollar, we get
`(140)/(4)` = 35 Belgian francs.

Now we have 120 U.S. dollars, so we get

`x = (120)(35) = 4200` = Belgian francs.

Thus for 120 U.S. Dollars we get 4200 Belgian francs.