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salgadobrittany salgadobrittany
  • 08-09-2016
  • Mathematics
Answered

12R

If V= ----

(r+R)

Make R the subject of the equation .

Verified Answer :

apologiabiology
apologiabiology apologiabiology
  • 09-09-2016

V=\(\frac{12R}{r+R}\)
note, r and R are differnt
so multipl both sides by (r+R)
V(r+R)=12R
distribute
Vr+VR=12R
minus VR from both sides
Vr=12R-VR
undistribute R
Vr=R(12-V)
divide both sides by (12-V)
\(\frac{Vr}{12-V}=R\) or
\(R= \frac{Vr}{12-V}\)

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