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Tim drove to town at a rate of 64kph and returned at 80kph. How much time was taken for each direction if the total arriving time was 1 hour and 21 minutes?
Total distance = 20 miles How fast do you've to go for the last 10 miles for average velocity for the entire trip to be 5 mi/h? Given the average velocity for the first 10 miles. Is it possible to hav
The speedboat traveled at the speed that was twice as fast as the yacht. The speedboat traveled 240 miles in one hour less than it took the yacht to travel 150 miles. What were the speed and time f
Assume a pick-5 lottery is played as follows. Each ticket (panel) has two sets of numbers. The top half of the panel has numbers 1 through 40.
An airplane can travel 450 miles in the wind in 2 hours and 25 minutes. This plane takes the same time to travel 630 miles with the wind. Find the speed of the airplane without any wind.
At the beginning of walk, Roberto and Juanita are 7.7 miles apart. If they leave at the same time and walk in same directions. Roberto over take jaunita in 11 hours.
A flare is fired directly upward in the air from boat that is experiencing engine problems. The height of flare (in feet) above the water, t seconds after being fired, is given by formula h = -16t2
Determine the number of ways to put eight different books in five boxes, if no box is allowed to be empty
Two accounts each began with the deposit of $10,000. Both accounts have rates of 6.5%, but one account compounds interest once year while the other account compounds interest continuously.
Find out the shaft speed and the overall impeller dimensions for a liquid oxygen pump which delivers 300 lb/sec of propellant at a discharge pressure of 1200 psia and a suction pressure of 14.7 psia
A student loan for $12000 can be paid back in 10 years at 10% p.a or in 15 years at 9% per annum. Determine the difference in the final amount due.
Assume that we have a collection of six coins, exactly one of which is counterfeit and weighs less than each authentic coin. Use a decision tree to describe a method for identifying the counterfeit
Describe escibe that K6 haves three spanning trees T1, T2 and T3 such that {(E(T1), E(T2), E(T3)} is a partition of E(K6) and the degrees of the vertices of each tree are 3,3,1,1,1,1.
A spring with a spring constant 8 N/m is loaded with the 2 kg mass and allowed to reach equilibrium. It is then displaced 1 meter downward and released. Assume the mass experiences a damping force i
A farmer has 336 running feet of fence and wishes to form rectangular pasture. one side of the pasture will be bounded by a very long wall, so no fencing material will be needed for that side of the
A plane flies 465 miles with the wind and 345 miles against wind in the same length of time. If the speed of the wind is 20 mph find the speen of the plane in still air.
A plane flies 465 miles with the wind and 345 miles against the wind in the same length of time. If the speed of the wind is 20 mph find the speen of the plane in still air.
At the beginning of a walk, Roberto and Juanita are 5.5 miles apart. If they leave at the same time and walk in the same direction, Roberto overtakes Juanita in 11 hours. If they walk toward each o
Cyclist A took 2 hours to travel from Town X to Town Y. Cyclist B took 45 minutes less to cover the same distance as he traveled at a speed faster by 3 km/h. Compute the distance from Town X to Tow
A motorist traveled along the straight road from Town A to Town B at 70 km/h. A motorcyclist traveled from Town B to Town A at 80 km/h. Both started journeys at same time and traveled upon the same
The height in feet of a projectile with an initial velocity of 160 feet per second and an initial height of 55 feet is a function of time t, in seconds, given by h(t)= -16t^2+160t+55. Determine the
John and Tony start from same place at the same time and head for the town 10 miles away. John walks twice as fast as Tony and arrives 3 hours before Tony. Find the speed of each.
A boat goes up stream 30 miles and down stream 44 miles in 10 hours. Again it goes up stream 40 miles and down stream 55 miles in 13 hours. Find the rates of the stream and of the boat.
To deliver a package, a messenger should travel at a speed of 60 miles for each hour on land and then employ a motorboat whose speed is 20 miles per hour in still water.
To deliver a package, a messenger should travel at speed of 60 miles per hour on land and then employ a motorboat whose speed is 20 miles per hour in still water.