To find the constant of proportionality for both Jimmy and Carlo, we can calculate their reading rates.
Jimmy's Reading Rate:
- He reads 15 pages in 5 minutes.
- To find the rate, we divide the number of pages by the number of minutes:
\[ \text{Jimmy's rate} = \frac{\text{Pages}}{\text{Time}} = \frac{15 \text{ pages}}{5 \text{ minutes}} = 3 \text{ pages per minute} \]
Carlo's Reading Rate:
- He reads 12 pages in 6 minutes.
- Similarly, we calculate his rate:
\[ \text{Carlo's rate} = \frac{\text{Pages}}{\text{Time}} = \frac{12 \text{ pages}}{6 \text{ minutes}} = 2 \text{ pages per minute} \]
Summary of Proportional Relationships:
- Jimmy's constant of proportionality (reading rate) is 3 pages per minute.
- Carlo's constant of proportionality (reading rate) is 2 pages per minute.
Comparison Sentence: Jimmy reads at a faster rate than Carlo, finishing 3 pages per minute compared to Carlo's 2 pages per minute.