Solve for r

Discussion in 'Other Pre-University Math' started by nycmathguy, Apr 10, 2022.

  1. nycmathguy

    nycmathguy

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    Revisiting precalculus just for fun.

    IMG_20220409_181625.jpg
     
    nycmathguy, Apr 10, 2022
    #1
  2. nycmathguy

    MathLover1

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    S=(rl-a)/(r-1)
    S(r-1)=rl-a
    Sr-S=rl-a
    Sr-rl=S-a
    (S-l)r=S-a
    r=(S-a)/(S-l)
     
    MathLover1, Apr 10, 2022
    #2
    nycmathguy likes this.
  3. nycmathguy

    nycmathguy

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    Don't you just love revisiting precalculus?
     
    nycmathguy, Apr 11, 2022
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