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10y=5 and z^4=81

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sandy
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10y=5 and z^4=81 [#permalink] New post   15 May 2018, 16:13
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\(\frac{10}{y} = 5\)

\(z^4=81\)

Quantity A
Quantity B
\(z\)
\(y\)


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.
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D
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Amit1997
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Re: 10y=5 and z^4=81 [#permalink] New post   07 Jul 2018, 21:39
Questions is not clear!
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sandy
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Re: 10y=5 and z^4=81 [#permalink] New post   08 Jul 2018, 00:45
Expert Reply
Amit1997 wrote:
Questions is not clear!

Sorry about that fixed it!
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Re: 10y=5 and z^4=81 [#permalink] New post   09 Jul 2018, 02:06
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\(10/y=5 ->\) \(y=2\)
\(z^4=81->\) \(z=3\) or \(z=-3\)
-> D.
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Re: 10y=5 and z^4=81 [#permalink] New post   05 Aug 2018, 16:20
y=10/5=2
z=+3 or -3
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Re: 10y=5 and z^4=81 [#permalink] New post   05 Mar 2023, 16:41
Hello from the GRE Prep Club BumpBot!

Thanks to another GRE Prep Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

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Re: 10y=5 and z^4=81 [#permalink]
05 Mar 2023, 16:41
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