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If the operation @ is defined for all numbers x and y by the equation
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Updated on: 08 Mar 2022, 11:08
Updated on: 08 Mar 2022, 11:08
Expert Reply
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Question Stats:
100% (00:30) correct
0% (00:00) wrong based on 15 sessions
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If the operation @ is defined for all numbers x and y by the equation \(x @ y = \frac{x - y}{3}\), then \(3 @ (11 @ 2) =\)
(A) -5
(B) -3
(C) 0
(D) 1
(E) 3
(A) -5
(B) -3
(C) 0
(D) 1
(E) 3
Re: If the operation @ is defined for all numbers x and y by the equation
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08 Mar 2022, 10:35
08 Mar 2022, 10:35
1
Will wait for the OE. I believe it should be 0 because (11 - 2)/3 --> 9/3 ---> 3
And 3@3 is equal to 0
And 3@3 is equal to 0
Re: If the operation @ is defined for all numbers x and y by the equation
[#permalink]
08 Mar 2022, 11:08
08 Mar 2022, 11:08
Expert Reply
AkkuJi wrote:
Will wait for the OE. I believe it should be 0 because (11 - 2)/3 --> 9/3 ---> 3
And 3@3 is equal to 0
And 3@3 is equal to 0
The answer cannot be E. I just check but the book says E.
Impossible the equation in the end after substitution is 3-3/3=0/3=0
The answer must be C
