L=prt solve for r

Question

I don't know how to solve this indicated variable 

Answer 1

Hello, thank you for taking the time to post your question!

If the starting equation is L = prt, you want to divide both sides by “pt” to get the “r” variable by itself

L = prt

r = L/pt

I hope that helps get you moving in the right direction! Feel free to reach out if you have any additional questions beyond that :)

Answer 2

you want the letter r by itself. As written in this equation, r is being multiplied by letter p and letter t. To undo multiplication, we divide. So divide both sides of the equation by pt.

This will leave r by itself on one side and L / pt on the other side.

 

Therefore     r = L / pt