Answer:
shelly ran about 10 miles.
Step-by-step explanation:
20 miles/140 minutes
=> 1 mile/7 minute
=> 1 mile/0.1167 hours
≈ 1 mile/0.1 hour
=> 1 mile x 10/0.1 x 10 hours
=> 10 miles/1 hour
Therefore, in about 1 hour, shelly ran about 10 miles.
Hoped this helped.
