GRE Prep Club Daily Prep
Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.
Customized
for You
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
2x-3y=7
[#permalink]
13 Aug 2020, 01:21
13 Aug 2020, 01:21
Expert Reply
2
Bookmarks
00:00
Question Stats:
84% (01:00) correct
15% (01:36) wrong based on 96 sessions
Hide Show timer Statistics
\(2x-3y=7\)
A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given.
KUDOS for the right solution and explanation
Quantity A |
Quantity B |
\( 4x^2-12xy+9y^2+18\) |
\(70 \) |
A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given.
KUDOS for the right solution and explanation
Re: 2x-3y=7
[#permalink]
15 Aug 2020, 21:42
15 Aug 2020, 21:42
1
I tried long division, only to be disappointed. The only way I solved it was to sub my own numbers into the smaller equation. It didn't take long to find the equation worked if x = 5 and y = 1: 2(5) - 3(1) = 7. From there, it's just a matter of plugging into the longer expression:
4(25) - 12(5) + 9(1) + 18 = 100 - 60 + 27 = 67. The answer is B.
4(25) - 12(5) + 9(1) + 18 = 100 - 60 + 27 = 67. The answer is B.
Carcass wrote:
\(2x-3y=7\)
A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given.
KUDOS for the right solution and explanation
Quantity A |
Quantity B |
\( 4x^2-12xy+9y^2+18\) |
\(70 \) |
A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given.
KUDOS for the right solution and explanation
Re: 2x-3y=7
[#permalink]
15 Aug 2020, 21:53
15 Aug 2020, 21:53
2
4x^2-12xy+9y^2+18 can be written as (2X-3y)^2 + 18 which is nothing but 7^2 + 18 = 49+18 = 67 which is less than 70.
