Answer:
Laura has to walk at 2 miles per hour or faster to arrive to her job on time.
Step-by-step explanation:
1. Let's review the data given to us for solving the question:
Distance from Laura's home to her job = 4 miles
Time when Laura starts to walk to her job : 9:00 a.m.
Time when Laura is scheduled to start working : 11:00 a.m.
2. Will she arrive at her job on time?
Time Laura has to complete the distance from her home to her job = 2 hours (11 -9)
Speed that Laura need to walk to arrive to her job on time = Distance from Laura's home to her job/Time Laura has to complete the distance from her home to her job
Speed that Laura need to walk to arrive to her job on time = 4 miles/2 hours = 2
Speed that Laura need to walk to arrive to her job on time = 2 miles per hour.
Laura has to walk at 2 miles per hour or faster to arrive to her job on time.
Note: Same reasoning to question 14013781, answered by me.
