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Next-door neighbors Bob and Jim use hoses from both houses to fill Bob's swimming pool. They know it takes 18 hours using both hoses. They also know that Bob's hose, used alone, takes 20% less time than Jim's hose alone. How much time is required to fill the pool by...
A man standing on a bridge drops a coin into a stream from a height of 112 feet. Its distance above the stream after "t" seconds is given by h(t)-112ft-16t^2 (squared). Find the coins average speed for the first 2 seconds. What is the average speed of the coin between...
The width of a rectangular ballfield is 96 yards. Find all possible lengths so that the perimeter of the ballfield will be at least 540 yards. Solve.
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