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March 30, 2017

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According to Boyle's law, the pressure p of a compressed gas is inversely proportional to the volume, v. If a pressure of 20 pounds per square inch exists when the volume of the gas is 500 cubic inches, what is the pressure when the gas is compressed to 400 cubic inches?

  • MATH PLEASE HELP! - ,

    P = k/V
    when P=20, V=500, so
    20 = k/500
    k = 10000
    then P = 10000/V

    if V - 400,
    P = 10000/400 = 25

    don't forget the units

  • MATH PLEASE HELP! - ,

    PROOF: 2/LOG A BASE 9 - 1/ LOG A BASE 5 = 3/ LOG A BASE 3

  • MATH PLEASE HELP! - ,

    thanks but how did you get 1000 by dividing k by 500?

  • MATH PLEASE HELP! - ,

    I had 20 = k/500
    now multiply both sides by 500
    20(500) = (k/500)(500

    10000=k

    the 500's canceled on the right side

  • MATH PLEASE HELP! - ,

    thank you so much! i really appreciate it!

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