Part 4/6:
The calculator works by employing a formula that takes into account the weighted average of your current grades. The formula combines your existing grades and the required percentage for the final exam.
For example, the overall equation formed would look like this:
[
\left( \frac{20}{25} \times 15% \right) + \left( \frac{35}{43} \times 15% \right) + \left( \frac{30}{40} \times 20% \right) + (X \times 50%) = 80
]
Here, ( X ) represents the score needed on your final exam. Rearranging the equation allows you to isolate and calculate ( X ).