College Algebra

The atmospheric pressure P in pounds per square inch, at x miles above sea level is given by P=14.7e^-0.21x. At what height will the atmospheric pressure be one third of the sea-level pressure?

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  1. Nevermind I got the answer, 5.73 miles.
    Thank you!

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  2. p=14.63ā‹…0.8
    a

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