Answer :
Answer:
The exchange rate would be 20 casatas per 1 dollar.
A good that costs 30 dollars should be expected to cost 600 casatas.
Explanation:
We can establish a ratio between these two currencies (where dollars is the numerator and casatas the denominator):
[tex]\frac{3}{60}[/tex]
If we divide both the numerator and denominator by three we get:
[tex]\frac{1}{20}[/tex]
Therefore, the exchange rate would be 20 casatas per 1 dollar.
At this rate of exchange a good that costs $30 in the U.S. should be expected to cost:
To solve this we can make two ratios and solve using a rule of three:
[tex]\frac{1}{20}=\frac{30}{x}[/tex]
Now we will solve for x: [tex]x = (20)(30)/1= 600[/tex]
Therefore it should be expected to cost 600 casatas.