To solve this problem, we must analyze this thoroughly. We are asked about the negative integers showing Jan’s withdrawals on Monday on her savings account. We must realize that withdrawal is a negative value since it decreases the money in the bank. And we are only asked about Jan’s, not including her twin sister Julie, therefore to write the sum of negative integers:
Sum of Jan’s withdrawals = - 25 + (- 45) + (- 75)
To find the total amount, we perform the mathematical operations. We know that + - = -, therefore:
Sum of Jan’s withdrawals = - 25 – 45 – 75
Sum of Jan’s withdrawals = - 145
Therefore Jan withdraw a total of $145 from her account.
