Determine speed of boat as it traveled upstream
The boat traveled 25km upstream. On return trip downstream, boat traveled 5km per hour faster. It trip took 10 minutes less time, determine speed of boat as it traveled upstream?
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Plane then travels back (100) miles with the head wind. Travel time is (40) min more than first trip. Determine speed of wind, and speed of plane?
Mandy's communte to work in morning takes 45 minutes and coming home she is able to drive 10 miles per hour faster, so it only takes thirty minutes, how far is the communte (one-way)?
Driver A drove 150 miles in same amount of time which it took the airplane to travel 600 miles. Speed of plane was 150 mph faster than speed of car. Find speed of the plane.
Employ the correct formula to determine the probability that, out of 25 customers, exactly 10 of them make a purchase. Show your computations or discuss how you found the probability.
The monthly utility bills are normally distributed with mean value of $150 and standard deviation of $20. Determine the probability of having a utility bill between 135 and 170.
A Mall manager claims that in an average every customer spends $42 per single visit to the mall. To test this claim, you took sample of 49 customers and found the sample mean to be $39 and sample standard deviation to be $9. At alpha = 0.05, test
A Mall manager claims that in average every customer spends $42 per a single visit to the mall. To test this claim, you took a sample of 49 customers and found the sample mean to be $39 and the sample standard deviation to be $9.
Freight train travels 30 km per hour slower than express train. They pass one another three hour later. Determine their speeds?
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