Final answer:
Vicki could ride 25 miles in 2 hours by calculating her speed (12.5 miles/hour) and multiplying it by the time (2 hours).
Step-by-step explanation:
Vicki rides her scooter at a rate of 5 miles in 2/5 of an hour. To find out how many miles she could ride in 2 hours, we first need to determine her speed in miles per hour. To calculate her speed, we can divide the distance by the time:
Speed = 5 miles / (2/5 hour) = 5 miles / (0.4 hour) = 12.5 miles/hour.
Now that we know Vicki's speed, we can find out how many miles she could ride in 2 hours by multiplying her speed by the time:
Distance = Speed × Time = 12.5 miles/hour × 2 hours = 25 miles.
Therefore, Vicki could ride 25 miles in 2 hours.