Elia rode her bicycle from her house to the beach at a constant speed of 18 kilometers per hour, and then rode
from the beach to the park at a constant speed of 15 kilometers per hour. The total duration of the rides was 1
hour and the distances she rode in each direction are equal.
Let b be the number of hours it took Elia to ride from her house to the beach, and p the number of hours it took
her to ride from the beach to the park.
Which system of equations represents this situation?
Choose 1 answer: