SOLUTION: You drive 100 miles. Over the first 50 miles you drive 50 mph, and over the second 50 miles you drive V mph.
Calculuate the time spent on the first 50 miles and on the sec
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Question 938138: You drive 100 miles. Over the first 50 miles you drive 50 mph, and over the second 50 miles you drive V mph.
Calculuate the time spent on the first 50 miles and on the second 50 miles.
Calculate the average speed for the entire 100 mile journey.
If you want to average 75 mph for the entire journey, what is V?
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
You drive 100 miles. Over the first 50 miles you drive 50 mph, and over the second 50 miles you drive V mph.
......
Calculuate the time spent on the first 50 miles and on the second 50 miles.
t = , t =
.......
Calculate the average speed for the entire 100 mile journey.
....
If you want to average 75 mph for the entire journey, what is V?
75(1 + 50/V = 100
1 + 50/V = 1 1/3
150mph = V
...
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