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.
For x > 7, which of the following equations is equivalent t
[#permalink]
09 Nov 2020, 13:39
09 Nov 2020, 13:39
Expert Reply
00:00
Question Stats:
83% (01:02) correct
16% (01:29) wrong based on 56 sessions
Hide Show timer Statistics
\(\frac{5}{\sqrt{x-7}}=6\)
For \(x > 7\), which of the following equations is equivalent to the equation above?
Indicate all such equations.
A. 25 = 36(x − 7)
B. 25 = 36x − 7
C. 25 = 36x − 252
D. 25 = 6(x − 7)
E. 25 = 6x − 7
F. 25 = 6x − 42
G. 25 = 6(x − √7)
H. 5 = 6(x − 7)
I. 5 = 6x − 7
Source: 320 GRE Math Questions
For \(x > 7\), which of the following equations is equivalent to the equation above?
Indicate all such equations.
A. 25 = 36(x − 7)
B. 25 = 36x − 7
C. 25 = 36x − 252
D. 25 = 6(x − 7)
E. 25 = 6x − 7
F. 25 = 6x − 42
G. 25 = 6(x − √7)
H. 5 = 6(x − 7)
I. 5 = 6x − 7
Source: 320 GRE Math Questions
Re: For x > 7, which of the following equations is equivalent t
[#permalink]
19 Nov 2020, 05:47
19 Nov 2020, 05:47
1
5/√x-7 = 6. -- Kindly note that square root symbol is for x-7.
5 = 6√x-7. If we square on both sides.
25 = 36(x-7). This is equivalent to option A.
25 = 36x - 252. This is equivalent to option C.
Hence option A and C are right answers.
Posted from my mobile device
5 = 6√x-7. If we square on both sides.
25 = 36(x-7). This is equivalent to option A.
25 = 36x - 252. This is equivalent to option C.
Hence option A and C are right answers.
Posted from my mobile device
gmatclubot
Re: For x > 7, which of the following equations is equivalent t [#permalink]
19 Nov 2020, 05:47
Moderators:
