Respuesta :
Answer:
He has remaining 135 US Dollars. ( approx )
Step-by-step explanation:
Since, 1 US dollar = 1.32 Canadian dollars,
⇒ 150 US dollars = 150 × 1.32 = 198 Canadian dollars,
Thus, if he exchanges 150 US dollars for Canadian dollars,
Then, the canadian dollars he has initially = 198,
Now, after Spending 20 canadian dollars,
The remaining Canadian dollars he have after returining to US = 198 - 20 = 178,
Again, 1.32 canadian dollars = 1 US dollar
⇒ [tex]1\text{ canadian dollars} = \frac{1}{1.32}\text{ US dollar}[/tex]
⇒ [tex]178\text{ canadian dollars} = \frac{178}{1.32}=134.85\approx 135\text{ US dollars}[/tex]
Hence, the remaining US dollars he have after returning to US is 135.
