Final answer:
To find out how long it will take the cyclist to bike 4.5 miles at a rate of 12.5 mph, we use the time = distance / speed formula, resulting in 0.36 hours or approximately 21.6 minutes.
Step-by-step explanation:
The question asks how long it will take a cyclist to bike 4.5 miles if she is traveling at a rate of 12.5 miles per hour. To find out how long it will take, we can use the formula time = distance / speed. Since the speed is given as 12.5 mph, we can plug the values into the formula to get:
time = 4.5 miles / 12.5 mph = 0.36 hours.
To convert this time to minutes, we multiply by 60 (since there are 60 minutes in an hour):
0.36 hours × 60 minutes/hour = 21.6 minutes.
Therefore, it will take the cyclist approximately 21.6 minutes to bike 4.5 miles at a speed of 12.5 mph.