Chapter P, Prerequisites - Section P.1 - Modeling the Real World with Algebra - P.1 Exercises - Page 6: 23

23. (a) GPA = $\frac{4a + 3b + 2c + 1d + 0f}{a + b + c + d + f}$ (b) GPA = 3.231

23. (a) GPA = $\frac{4a + 3b + 2c + 1d + 0f}{a + b + c + d + f}$ (b) GPA = $\frac{4a + 3b + 2c + 1d + 0f}{a + b + c + d + f}$ GPA = $\frac{(4×3) + (4×3) + (3 × 4) + (2 × 3)}{3 + 3 + 4 + 3}$ GPA = $\frac{12 + 12 + 12 + 6}{13}$ GPA = $\frac{42}{13}$ GPA = 3.231