Question

Indira withdrew $20 from her account every day for 5 days, then deposited $45 into the account. Which expression represents the change in the amount in her account?

Answer 1

the answer is -20 x 5 + 45

Answer 2

`-100+45`

Explanation:

Given : Indira withdrew $20 from her account every day for 5 days, then deposited $45 into the account.

To Find: Which expression represents the change in the amount in her account?

Solution:

We are given that she withdrew in 1 day = $20

So, She withdrew in 5 days =
`20 * 5 =100`

Since she is withdrawing $100

So, withdrawal = -100

Then she deposited $45 into the account.

So, expression:
`-100+45`

`-100+45 = -55`

-55 shows the change in the amount in her account

Negative sign shows that balance will be decrease by 55.

Hence expression:
`-100+45`