To calculate your new grade after scoring 100% on a test that is worth 50% of your overall grade, you can use the following formula:
\[ \text{New Grade} = \text{Current Grade} \times \text{Weight of Current Grade} + \text{Test Score} \times \text{Weight of Test} \]
Given:
- Current Grade = 54%
- Test Score = 100%
- Weight of Current Grade = 50% (0.5)
- Weight of Test = 50% (0.5)
Now substituting the values into the formula:
\[ \text{New Grade} = (54% \times 0.5) + (100% \times 0.5) \]
Calculating each part:
- \( 54% \times 0.5 = 27% \)
- \( 100% \times 0.5 = 50% \)
Now, add these two results together:
\[ \text{New Grade} = 27% + 50% = 77% \]
So, your new grade after the test will be 77%.