Churej wrote:
Terry had x dollars in her bank account at the beginning of a certain week. During the week, four transactions were recorded in her account in the following order: a deposit of $50, a withdrawal of $70, a withdrawal of $40, and a deposit of $80. If b represents the amount in Terry's account at some time during the week, which of the following must be true?
A. b < x
B. b = x + 20
C. b ≤ x + 40
D. b ≥ x - 60
E. |x - b| ≤20
Attachment:
TERRY.png
Initial amount: x
After first transaction: x + 50
After second transaction: x - 20
After third transaction: x - 60
After fourth transaction: x + 20
The amount b at any given time could be less than or greater than or equal to x (before the firsttransaction)
A. b <x
Could be but notnecessary
B. b = x +20
Could be but not necessary. b could be x+ 50 or x - 20etc.
C. b ≤ x +40
Not necessary. b could be x+50
D. b ≥ x -60
Correct. In all cases, the amount is > or = to (x -60)
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Statistics : Posted by KarishmaB • on 04 Jan 2024, 04:34 • Replies 5 • Views 1239
