To determine who climbed a steeper mountain, we can calculate the slope of each mountain using the formula for slope:
\[ \text{slope} = \frac{\text{rise}}{\text{run}} \]
For Joe:
- Rise = 1200 feet
- Run = 1500 feet
\[ \text{slope}_\text{Joe} = \frac{1200}{1500} = 0.8 \]
For Bob:
- Rise = 900 feet
- Run = 1000 feet
\[ \text{slope}_\text{Bob} = \frac{900}{1000} = 0.9 \]
Since Bob’s slope (0.9) is greater than Joe’s slope (0.8), Bob climbed the steeper mountain.