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QOTD#21 What is w if
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03 Apr 2017, 03:20
03 Apr 2017, 03:20
Expert Reply
00:00
Question Stats:
94% (00:45) correct
5% (00:53) wrong based on 18 sessions
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What is w if \(\frac{1}{9}(w+1)=\frac{1}{729}\)?
Drill 3
Question: 6
Page: 318
Question: 6
Page: 318
Show: :: OA
\(\frac{-80}{81}\)
Re: QOTD#21 What is w if
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03 Apr 2017, 05:36
03 Apr 2017, 05:36
Expert Reply
Explanation
Multiply both sides of the equation by 9, which gives you \((w + 1) = 9/729\) or \(w+1 = 1/81\).
Solving for \(w = \frac{-80}{81}\).
Hence \(\frac{-80}{81}\) is correct.
Multiply both sides of the equation by 9, which gives you \((w + 1) = 9/729\) or \(w+1 = 1/81\).
Solving for \(w = \frac{-80}{81}\).
Hence \(\frac{-80}{81}\) is correct.
gmatclubot
Re: QOTD#21 What is w if [#permalink]
03 Apr 2017, 05:36
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