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September 18, 2014

September 18, 2014

Posted by **lisa** on Monday, November 11, 2013 at 10:32pm.

P = 14.7 e^−0.21 a

where a is the altitude above sea level (in miles). If a city has an atmospheric pressure of 12.17 psi, what is its altitude?

- algebra -
**Reiny**, Monday, November 11, 2013 at 10:43pmyou are solving

12.17 = 14.7 e^(-.21a)

.827891156 = e^(-.21a)

ln (.827891156) = -.21a lne

-.21a = -.188873...

a = appr .8994 miles or appr 4750 ft to the nearest ten feet.

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