Question

Solve for R in I=PRTa.) What is the variable?b.) What is happing to the variable? (list the operations from the first thing to the last thing)c.) What is the inverse (opposite) of the last thing that happened to the variable. (Make a list of the steps to solve)

Answer 1

a) R is the variable

b) a product, the variable is being multiplied

`R=(I)/(PT)`

Step-by-step explanation

Step 1

`I=\text{PRT}`

the value for I depends on the value for R, it means, that I depends on the value for R

so, R is the variable

Step 2

when you have

`\begin{gathered} I=\text{PRT} \\ is\text{ equal to} \\ I=P\cdot R\cdot T \end{gathered}`

it is a multiplication between P, R and T,the variable is being multiplied

Step 2

solve for R

`\begin{gathered} I=\text{PRT} \\ \text{you n}eed\text{ to do the inverse operation } \\ \text{Multiplication}\Rightarrow opposite\Rightarrow Division \end{gathered}`

then, opposite operation is division, divide both sides by PT

`\begin{gathered} (I)/(PT)=(PRT)/(PT) \\ (I)/(PT)=R \\ R=(I)/(PT) \end{gathered}`

I hope this helps you