Question

On Monday, Elsbeth’s bank account balance was -$16.75. On Tuesday, she deposited a check for $5.72. On Thursday, she deposited $16.75. What is her new balance?

-16.75 + (5.72 + 16.75)

Use the commutative property to get:

-16.75 + (16.75 + 5.72)

Use the associative property to get:

(-16.75 + 16.75) + 5.72

On Friday, Elsbeth deposited her pay check for $872.56. What was the account’s final total?
-$866.84
$878.28
$895.03
$903.10

Answer 1

Let's first calculate Elsbeth’s account balance step by step, starting from Monday.

1. Initial balance on Monday:
\[
-16.75
\]

2. On Tuesday, Elsbeth deposited $5.72:
\[
-16.75 + 5.72 = -11.03
\]

3. On Thursday, she deposited $16.75:
\[
-11.03 + 16.75 = 5.72
\]

Now her balance is $5.72 before the Friday deposit.

4. On Friday, Elsbeth deposited her paycheck of $872.56:
\[
5.72 + 872.56 = 878.28
\]

Thus, the account's final total balance on Friday is:
\[
\text{\$878.28}
\]

Therefore, the answer is:
**$878.28**.