Final answer:
To solve for I in the equation S = P + πI, subtract P from both sides and then divide by π to isolate I, resulting in I = (S - P)/π. Make sure all units are correct before substituting the known values.
Step-by-step explanation:
Step-by-Step Solution to the Problem
The original equation provided by the student is S = P + πI. To solve for the specified variable I, we first need to isolate I on one side of the equation. We do this by subtracting P from both sides of the equation, which will give us the formula for I.
Here are the steps:
- Start with the equation S = P + πI.
- Subtract P from both sides to isolate πI: S - P = πI.
- Divide both sides by π to solve for I: I = (S - P)/π.
Now we have expressed I in terms of the known variables S and P, and we have used π to represent pi as per the instructions.
It is important to confirm that all values are in the correct units before substituting them into the equation. Finally, substitute the known values along with their units to obtain the numerical solution for I, ensuring that the units are consistent with the expectations of the problem.
Be sure to check that the numerical answer is reasonable, both in magnitude and units.