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# The equation relates two temperature scales, where M is

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Manager
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The equation relates two temperature scales, where M is [#permalink]  25 Aug 2003, 20:01
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. The equation relates two temperature scales, where M is the number of degrees on one scale and P is the number of degrees on the other scale. Which of the following equations can be used to convert temperatures from the P scale to the M scale?
(A) 7/12P+13
(B) 7/12P+21
(C) 7/12P-12
(D) 7/12P-13
(E) 7/12P-18

My answer is 12/7P-18 and their's is E????
Manager
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there must be something missing in your question... as stated, its not enough
Manager
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ps [#permalink]  27 Aug 2003, 07:19
This information is complete and as it is from GMAT +
Manager
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aps_can wrote:
.

My answer is 12/7P-18 and their's is E????

Maybe I'm missing something...What logic did you use to come up with your answer?
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Sorrrrrrrryyyyyy [#permalink]  27 Aug 2003, 10:51
P+6/36=P-7/21 This is the equation. I just did cut and paste and this formula got left. See if its easier. I'm so sorry for wasting ur precious time and mind.
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Once again [#permalink]  27 Aug 2003, 10:53
Sorry once again there is a typo in the earlier equation
P+6/36= M-7/21
Once again   [#permalink] 27 Aug 2003, 10:53
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