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At noon Joyce drove to lake at 30 miles per hour, but she made long walk back home at 4 miles per hour. How long she walk if she was gone for 17 hours? How far she walk?
Excursion boat on the river takes 2 1/2 hours to make trip to the point 12 miles upstream and to return. If rate at whick boat travels in still water is 5 times rate of river current, determine rate
With the certain tail wind the jet aircraft arrives at the destination, 1,890 miles away, in 3 hours. Flying against same wind, plane makes return trip in 3 3/8 hours. Determine wind speed and plan
John takes three hours longer than andrew to peel 400 pounds of apples. If together they can peel 400 pounds of apples in nine hours, then how long it take john to peal apples working alone?
Debbie travelled by boat five miles upstream to fish in the favorite spot. Due to 6-mph current, it took her 20 minutes longer to get there than to return. How fast boat will go in still water?
Jones traveled 70 miles. Smith traveld 45 miles. Jones averaged five miles per hour more than Smith and the trip took 1/2 hour longer than Smith's. How fast was every one traveling?
Assume you throw the baseball straight up at the velocity of 32 feet per second. Ball will be how high above ground after one second?
Find probability that project will be finished in less than 57 days? Find probability that project will require at least 50 days?
Examine logical form of given statement. Then examine (b) and (c) and find if statement is equivalent to either statement (a) or its converse.
Translate given statement into symbols of formal logic: If you are not in South Korea, then you are not in Seoul or Kwangju.
For every set of primes and the choice of e, compute the private key and public key, then utilize them to encrypt message F (or 6) then decrypt resulting cipher text, respectively.
Compute p value for the two sided exact binomial test. Compute p value of two sided exact binomial test, utilizing distance approach and then again with probability approach.
On the island fisherman catches 200 fish for 10 days, 100 fish for 15 days and 250 fish for 5 days. Find average number of fish caught in the thirty days.
With wind, the airplane travels 2200 miles in four hours. Against wind, it takes five hours to travel 2350 miles. Determine rate of plane in still air.
The tugboat pushing the barge up Ohio River takes 1 hour longer to travel 36 miles up river than to travel same distance down river. If rate of current is 3 mph, determine speed of tugboat and barge
Twice as much will be invested at 4.5% as at 8%, and total interest earned first year needs to be $10,400. How much must be invested at every rate?
If total driving time was eight hours and part under construction was 208 miles, at what speed drive part under construction in mph?
Two rockets are launched. First one travels 9000mph. 15 minutes later second is launched at 10000mph. Find distance at which both rockets are the equal distance from earth.
Even with delay, Bob finishes 2 hours ahead of Moe. How fast was every person walking, and how long it took for every person to finish walk?
At same time Amy begins driving, Beth begins walking toward store at 3mph. Amy spends one hour at store, and then drives home at 30mph. Determine when and where Amy and Beth meet?
The Junior Verification Engineer takes one hour longer to fix bug (in the code) than it takes Senior Engineer. If they can fix bug in 5 hours working together, how long would it take every Engineer
This time boats pass each other when they are 400 meters from nearest shore. Suppose that each of boats travels at same speed in both directions, how wide is lake between two ferry docks?
The cyclist bikes at the constant speed for 24 miles. His return trip takes one hour longer and is 29 miles. Determine his speed?
The plane flying with wind went 600 miles in 3 hours. Return trip, flying against wind took 4 hours. Determine rate of plane in calm air and rate of wind.
Two cars start together and travel in same direction, one going twice as fast as other. At the end of three hours, they are 96 miles apart. How fast is every car traveling?