When Marcia started walking a 6 mile section of a trail it took 3.3 hours. After 1 week her time was 3.1 hours and after 2 weeks it was 2.9 hours. If the pattern continues what will Marcia time be after 5 weeks? Help!
3rd week 2.7 hours
4th week 2.5 hours
5th week 2.3 hours
2.9 -(3 * 0.2) = ______ hours after 5 weeks
To find out what Marcia's time will be after 5 weeks, we need to analyze the pattern in her walking times. Let's start by organizing the given information:
- 1 week: 3.1 hours
- 2 weeks: 2.9 hours
From this, we can see that for every week that passes, Marcia is reducing her walking time. So, we can conclude that the pattern is decreasing by 0.2 hours each week.
Now, let's calculate her walking time after 5 weeks:
- 3.1 hours (initial time) - 0.2 hours (decrease per week) * 5 weeks = ?
- 3.1 hours - 1 hour = 2.1 hours
Therefore, Marcia's walking time after 5 weeks would be 2.1 hours.