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2x + y = z
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25 Dec 2018, 11:10
25 Dec 2018, 11:10
Expert Reply
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Question Stats:
94% (00:27) correct
5% (00:30) wrong based on 54 sessions
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2x + y = z
Quantity A |
Quantity B |
The value of z when x = − 1 and y = 3 |
The value of z when x = − 2 and y = 2 |
A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.
Retired Moderator
Joined: 10 Apr 2015
Posts: 6218
Given Kudos: 136
Re: 2x + y = z
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02 Mar 2019, 14:32
02 Mar 2019, 14:32
1
Carcass wrote:
2x + y = z
Quantity A |
Quantity B |
The value of z when x = − 1 and y = 3 |
The value of z when x = − 2 and y = 2 |
A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.
GIVEN: 2x + y = z
QUANTITY A: value of z when x = − 1 and y = 3
Plug values into given equation to get: 2(-1) + 3 = z
Evaluate: 1 = z
QUANTITY B: value of z when x = −2 and y = 2
Plug values into given equation to get: 2(-2) + 2 = z
Evaluate: -2 = z
We get:
QUANTITY A: 1
QUANTITY B: -2
Answer: A
Cheers,
Brent
gmatclubot
Re: 2x + y = z [#permalink]
02 Mar 2019, 14:32
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