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For x > 7, which of the following equations is equivalent t
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09 Nov 2020, 13:39
09 Nov 2020, 13:39
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Question Stats:
83% (01:02) correct
16% (01:29) wrong based on 55 sessions
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\(\frac{5}{\sqrt{x-7}}=6\)
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
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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
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