Question

Sally had a balance in her account of $120.50 on Tues. On Wed the balance was $99.75. What was the change in her account?

Answer 1

-20.75

Explanation

Step 1

Let

initial balance = $120.50

final balance= 99.75

change= unknow

Step 2

the change is

$\begin{gathered} \text{change = final balance - initial balance} \\ \text{replace} \\ \text{change}=99.75-120.50 \\ \text{change}=-20.75 \end{gathered}$

the negative means she used money from her account