How much time spent driving at given speed
On the 5 hr trip thomas drove part of time at 30mph and rest 55 mph. If he traveled the distance of 250 miles, how much time he spent driving at 55mph?
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Kelley's boat goes 12mph. Determine rate of cureent of river if she can go 6mi upstream in same amount of time she can go 10mi downstream.
For independent samples of 3 and 6, respectively, determine the mean and standard devriation of x1 and x2. Must the variable under consideration be normally distributed upon each of two populations for your to answer part (a)? Discuss your answer.
Write down a correct null and alternative hypothesis that tests the claim that the mean distance a student commutes to campus is no less than 9.7 miles?
A researcher is determining the impact of new technique of teaching Farsi. She concludes that the new technique is significantly better than the old method, based upon a test with alpha = 0.05.
On the 5 hr trip thomas drove part of time at 30mph and rest 55 mph. If he traveled the distance of 250 miles, how much time he spent driving at 55mph
First boat travels two miles per hour faster than second boat. Determine average speed of every boat if they are six miles apart after two hours?
As boat goes over falls, she thinks that five minutes passed as it was turned around. How fast boat moved throught water? How fast was water flowing?
Hisako ran first leg at 12 km/h and last two legs at 16 km/h. The whole race took her fifty min. How long was every leg? How long was complete course?
One train leaves Los Angeles at 15mph heading for New York. Leaves from Los Angeles at same time as train and flies back and forth between two trains until they collide, how far will bird traveled?
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