Chaquille can run 3 miles in 22.5 minutes. The direct variation equation y=7.5x gives the relationship between y, the number of minutes Chaquille spends running and x the number of miles he runs.What is the constant of proportionality? What does it represent?
A. The constant of proportionality is 3. This is how many miles Chaquille can run per day
B. The constant of proportionality is 22.5. This is how many minutes Chaquille spends running each day.
C. The constant of proportionality is 7.5. Chaquille runs 7.5 miles per hour
D. The constant of proportionality is 7.5. Chaquille runs each mile in 7.5 minutes
1 answer
D. The constant of proportionality is 7.5. Chaquille runs each mile in 7.5 minutes.