Suppose Marisol has $800 in her savings account. She withdraws A dollar from her account. Deciding that this is not enough, she makes another withdrawal of B dollars. The amount of money left in her savings account now equals zero. What integers represent the withdrawals from her account?
(1 point)
A. -200 and -500
B. -400 and -500
C. -100 and -800
D. -200 and -600
B. -400 and -500
Explanation: Since Marisol started with $800, the total amount of her withdrawals must equal $800 in order to leave $0. Therefore, A + B = $800. Additionally, since she withdrew the amount of A first and then B, A must be the larger withdrawal and B must be the smaller withdrawal, resulting in B < A. The only option that fits these criteria is -400 and -500.
Actually:
800 - 200 - 500 = 100
800 - 400 - 500 = -100
800 - 100 - 800 = -100
800 - 200 - 600 = 0