Answer:
45 miles/hour
Step-by-step explanation:
We need the speed in miles per hour so we need to changes minutes to hours
20 minutes * 1 hour /60 minutes = 1/3 hour
Speed = distance/ time
= 15 miles/(1/3 hour)
=15 *3 miles/hour
= 45 miles /hour
Answer: yes under these condition many traingles can be formed.
