Final answer:
Ava's initial bank account balance is -$40. After withdrawing $10, her new account balance is subtractive, resulting in -$50. The negative balance indicates that she is in debt by $50 to the bank.
Step-by-step explanation:
The question asked concerns a transaction in Ava's bank account. Ava's initial balance is -\$40, indicating that she is already in debt. When she withdraws an additional \$10, her account balance becomes more negative. To find the new account balance after withdrawing \$10, we simply need to subtract \$10 from her initial balance of -\$40.
To calculate:
- Initial balance: -\$40
- Withdrawal: -\$10
- New balance = Initial balance + Withdrawal = -\$40 + (-\$10) = -\$50
The negative sign indicates that Ava's balance is below zero, meaning she owes the bank \$50. Therefore, after withdrawing \$10, Ava's account balance is -\$50.