1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Ratio question

  1. Feb 8, 2010 #1
    hi i do not understand how to get this as a ratio. 1.25 x 10-2Sv-1 = 1:80

    (the - is a to the power of), how does that equal 1:80 what do i do step by step to get 1:80

    please could you help i do not understand this.
  2. jcsd
  3. Feb 8, 2010 #2


    Staff: Mentor

    Your equation doesn't make a whole lot of sense. I can't tell if what you wrote as Sv-1 is
    a) S*v - 1
    b) Sv - 1
    c) Sv-1
    Without any context, I have no idea what you mean.

    Let's take a look at the rest of what you have.
    .125 = 1/8 and .0125 = 1/80
    Check these by dividing 1 by 8 and 1 by 80.
    1.25 x 10-2 = 0.0125 = 1/80
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook