Given:
The values of the US dollar (x) and a foreign currency (y) vary directly according to the formula:
[tex]y=2.5x[/tex]
To find:
The number of units of the foreign currency would someone receive in exchange for 150 US dollars.
Solution:
We have,
[tex]y=2.5x[/tex]
Substitute x=150 in the given formula.
[tex]y=2.5(150)[/tex]
[tex]y=375[/tex]
Therefore, 375 units of the foreign currency would someone receive in exchange for 150 US dollars.
