For The First 100 Miles Of Her Trip, Susan Drove At 50 Miles Per Hour. Then Because Of Construction Delays, She Drove At Only 40 Miles Per Hour For The Next 120 Miles. What Was Her Average Speed, In Miles Per Hour, For The Entire Trip?
For the first 100 miles of her trip, Susan drove at 50 miles per hour. Then because of construction delays, she drove at only 40 miles per hour for the next 120 miles. What was her average speed, in miles per hour, for the entire trip?
asked Jun 15 12:00:00 AM