Final answer:
After converting USD to MXN and spending a part of it in Mexico, Leslie converts the remaining MXN back to USD and is left with $99.50.
Step-by-step explanation:
The question is asking to determine how many USD Leslie has left after exchanging her money to MXN (Mexican Pesos), spending a portion in Mexico, and then exchanging what she has left back to USD. To solve this, we first need to calculate how much MXN Leslie got from $248.75 USD using the exchange rate of 1 USD = 20.10 MXN.
The amount in MXN will be $248.75 * 20.10 MXN/USD. After spending 3000 MXN, we subtract this amount from the total MXN she had. Finally, we convert the remaining MXN back into USD using the same exchange rate.
First step: $248.75 * 20.10 = 5000 MXN
After spending: 5000 MXN - 3000 MXN = 2000 MXN
Finally, converting back to USD: 2000 MXN / 20.10 MXN/USD = $99.50 USD
Therefore, Leslie is left with $99.50 USD after her trip to Mexico.