SOLUTION: i want to average 55mphfor the entire 1375 mi. i cover the first 220 mi in 2 hrs and 30 min.I then stop for a 20 min. break. during the next hr i travel only 40 mi due to road cons

Algebra ->  Customizable Word Problem Solvers  -> Travel -> SOLUTION: i want to average 55mphfor the entire 1375 mi. i cover the first 220 mi in 2 hrs and 30 min.I then stop for a 20 min. break. during the next hr i travel only 40 mi due to road cons      Log On

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Question 461535: i want to average 55mphfor the entire 1375 mi. i cover the first 220 mi in 2 hrs and 30 min.I then stop for a 20 min. break. during the next hr i travel only 40 mi due to road construction. I then stop for 40 min. for dinner. how fast must i average for the rest of the trip if i want to meet my goal of averaging 55mph
Answer by jorel1380(3719) About Me  (Show Source):
You can put this solution on YOUR website!
1375/55=25 hours
first 2:50=220 miles
next 1:00=40 miles
next :40=0 miles
As of now you have traveled 260 miles and spent 4:30. You now have 20:30 to finish 1115 miles:
1115/20.5=54.4 mph
You need to average 54.4 mph for the rest of the trip to meet your goal..