To calculate your new overall grade after receiving an 81 on an assignment worth 46%, you can use the following formula:
\[ \text{New Overall Grade} = \left( \text{Old Overall Grade} \times \text{Weight of Old Overall} \right) + \left( \text{New Grade} \times \text{Weight of New Grade} \right) \]
Let's break it down:
- Your old overall grade is 100.
- The weight of the old overall grade is the remaining weight after the assignment, which is \(100% - 46% = 54%\) or 0.54 in decimal.
- The new grade is 81.
- The weight of the new grade is 46% or 0.46 in decimal.
Now, plug these numbers into the formula:
\[ \text{New Overall Grade} = (100 \times 0.54) + (81 \times 0.46) \]
Calculating each part:
\[ 100 \times 0.54 = 54 \]
\[ 81 \times 0.46 = 37.26 \]
Now, add both results together:
\[ \text{New Overall Grade} = 54 + 37.26 = 91.26 \]
So your new overall grade is approximately 91.26.