Question

Denise closely monitored the balance of her checking account.
Denise's checking account balance
Month Amount
June $80
July $85
August $98
September $98
October $85
According to the table, what was the rate of change between July and October?
$ ___ per month

Answer 1

To find the rate of change between July and October, we can use the formula:

\[
\text{Rate of Change} = \frac{\text{Change in Amount}}{\text{Change in Time}}
\]

First, let's identify the amounts for July and October:

- July balance: $85
- October balance: $85

Now, we calculate the change in amount:

\[
\text{Change in Amount} = \text{October Balance} - \text{July Balance} = 85 - 85 = 0
\]

Next, determine the change in time:

- Time from July to October is 3 months.

Now we can calculate the rate of change:

\[
\text{Rate of Change} = \frac{0}{3} = 0
\]

Therefore, the rate of change between July and October is:

\[
\boxed{0} \text{ per month}
\]