For this case we make a rule of three to determine the initial amount of euros:
1 euro ----------------> 1.3687 dollars
x ------------------------> 250 dollars
Where "x" represents the amount of euros equivalent to 250 dollars.
[tex]x = \frac {250 * 1} {1.3687}\\x = 182.655074158[/tex]
Thus, Phelan received 182.655074158 euros.
If I spend 150 euros, we have:
[tex]182.655074158-150 = 32.655074158[/tex]
Now, we make the conversion to know the amount of dollars equivalent:
1 euro ----------------> 1.3687 dollars
32,655074158 ------------------------> y
Where "y" represents the amount of dollars:
[tex]y = \frac {32.655074158 * 1.3687} {1}\\y = 44,695[/tex]
So, Phelan has 44,695 dollars
Answer:
$ 44,695
