Complete Question:
Haruka hiked several kilometers in the morning. She hiked only 6 kilometers in the afternoon, which was 25% than she had hiked in the morning.
How many kilometers did Haruka hike in all?
Answer:
10.5 km
Explanation:
Given
Represent Morning with M and Afternoon with A

From the second sentence in the question, we have that:

Required
Determine the total kilometers
First, we need to determine the kilometers moved by substituting 6 for A in the second equation




Next, is to determine the total using:


