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Pd96 Pd96
wrote...
Posts: 1256
7 years ago
A motorist makes a trip of 180 miles. For the first 90 miles she drives at a constant speed of 30 mph. At what constant speed must she drive the remaining distance if her average speed for the total trip is to be 40 mph?
A) 45 mph
B) 50 mph
C) 52.5 mph
D) 55 mph
E) 60 mph
Textbook 
College Physics

College Physics


Edition: 1st
Authors:
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Answer verified by a subject expert
noreyaganoreyaga
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Posts: 649
7 years ago
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Pd96 Author
wrote...

7 years ago
Good timing, thanks!
wrote...

Yesterday
Thanks
wrote...

2 hours ago
Brilliant
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