Question

I = PRT, solve for r.

Answer 1

$R=\frac{I}{PT}$

Explanation

$I=\text{PRT}$

Step 1

divide both sides by P

$\begin{gathered} I=\text{PRT} \\ \frac{I}{P}=\frac{PRT}{P} \\ \frac{I}{P}=RT \end{gathered}$

Step 2

divide both sides by T

$\begin{gathered} \frac{I}{P}=RT \\ \frac{I}{PT}=\frac{RT}{T} \\ \frac{I}{PT}=R \\ R=\frac{I}{PT} \end{gathered}$

I hope this helps you