In January Doreens bank balance decreased by $50.00. In Febru

ary, her balance increased by $30.00. What was the total change in her balance

30 - 50 = ?

-20

To calculate the total change in Doreen's balance, we need to find the difference between her balance in January and her balance in February.

First, let's start with Doreen's bank balance in January. Since it decreased by $50.00, we can represent this with the following equation:

January balance = x - 50.00

Next, we calculate Doreen's bank balance in February, which increased by $30.00:

February balance = x + 30.00

To find the total change in Doreen's balance, we subtract the January balance from the February balance:

Total change = February balance - January balance
Total change = (x + 30.00) - (x - 50.00)
Total change = x + 30.00 - x + 50.00 (simplify by removing parentheses)
Total change = 80.00

Therefore, the total change in Doreen's balance is $80.00.