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Luke drives the first 300 miles of a trip at 60 miles an hou
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04 Dec 2017, 03:12
04 Dec 2017, 03:12
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Question Stats:
94% (00:47) correct
5% (00:57) wrong based on 18 sessions
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Luke drives the first 300 miles of a trip at 60 miles an hour. How fast does he have to drive, in miles per hour, on the final 200 miles of the trip if the total time of the trip is to equal 7 hours?
Kudos for correct solution.
Show: :: OA
100 mph
Kudos for correct solution.
Re: Luke drives the first 300 miles of a trip at 60 miles an hou
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04 Dec 2017, 22:04
04 Dec 2017, 22:04
Bunuel wrote:
Luke drives the first 300 miles of a trip at 60 miles an hour. How fast does he have to drive, in miles per hour, on the final 200 miles of the trip if the total time of the trip is to equal 7 hours?
Kudos for correct solution.
Show: :: OA
100 mph
Kudos for correct solution.
Here,
First 300 miles, Luke drives = 60m/hr
Therefore time taken = \(\frac{300}{60}\) = 5hrs
Total time taken for entire journey= 7 hrs
therefore she must complete the 200 miles in = 7 - 5 = 2hrs.
So the speed she needs to travel for 200 miles = \(\frac{200}{2}\) = 100 m/hr
Luke drives the first 300 miles of a trip at 60 miles an hou
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23 Nov 2018, 03:57
23 Nov 2018, 03:57
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Expert Reply
Luke drives the first 300 miles of a trip at 60 miles an hour. How fast does he have to drive, in miles per hour, on the final 200 miles of the trip if the total time of the trip is to equal 7 hours?
Show: :: OA
100
