Tutors Answer Your Questions about Travel Word Problems (FREE)
Question 438784: When a ball is thrown upward at a speed of 19m/s, its height s above the ground (in meters) after t seconds is given by the formula
s=19t-24.01t
find the height of the ball after 3 seconds
I just can't figure out how to solve
Kim
Click here to see answer by Alan3354(69443)  |
Question 439044: Trains A and B are traveling in the same direction on parallel tracks. Train A is traveling at 40 miles per hour and train B is traveling at 48 miles per hour. Train A passes a station at 12:20 PM. If train B passes the same station at 12:35 PM, at what time will train B catch up to train A?
Click here to see answer by jorel1380(3719)  |
Question 439228: In a 16 km cross-country ski race Brett skied the first 7 km at a constant speed and then increased his speed by 3 km/h for the last 9 km. If he finished the entire race in 1 hour and 20 minutes, what was his speed for the first 7 km?
my teacher gave me the answer 10.5 km/hr but i cant set it up right. i know that d = r X t but for some reason when i set up the problem i get a different answer everytime and its never the right one. thanks for your help!
Click here to see answer by jorel1380(3719)  |
Question 439292: A college crew team can maintain a speed equivalent to 15 km/hr in still water. If it takes the team 50 minutes to row 6 km upstream and back, what is the rate of the current in the river?
my teacher gave me the answer 3km/hr but i cant figure out how to set it up. could you also explain as you go through? thank you very much :D
Click here to see answer by stanbon(75887) |
Question 439375: if i am driving 55 mph and have to drive 406 miles how long will it take to get to the end? ..... i am not trying to cheat on a test or anything just cannot figure it out if at all possible can you give me the formula to solve that by myself thank you have a good day i have to make that trip on the 30th of this month (april 2011) so please let me know soon thanks
Click here to see answer by stanbon(75887) |
Question 439413: Two trains leave the station at the same time, one heading west and the other east. THe westbound train travels 14 miles per hour faster than the eastbound train. If the two trains are 760 miles apart after 4 hours, what is the rate of the westbound train?
DO NOT ROUND
Click here to see answer by rfer(16322) |
Question 439637: Two runners jog around an oval track at constant rates, but in opposite directions.one runner completes a lap in 10 min and the other in 12 min. How many minutes elapse between consecutive meetings of the runners (expressed as mixed number)
Click here to see answer by robertb(5830)  |
Question 439763: two cyclist start at the same time and travel toward the same direction. at the end of two hours, they are 50 meters APART . if the speed of the cyclist is twice of that the slower one , how fast did each travel?
Click here to see answer by nerdybill(7384)  |
Question 439837: Hal rides 6 hours total on a bicycle trip into the country and back. He rode out at the rate of 19 mph and returned at the rate of 25 mph. How far into the country did Hal ride (round to the nearest hundredth)?
Click here to see answer by jorel1380(3719)  |
Question 439915: please help me solve this word problem: a plane flies 450 miles with the wind and 330 miles against the wind in the same lenghth of time. If the speed of the wind is 20 mph, what is the speed of the plane in still air ?
Click here to see answer by stanbon(75887) |
Question 440061: The Amtrak auto train travels nonstop from lorton, Virginia to sanford, Florida. June wishes to bring two cars down to Florida for the winter, so she decides to send one by auto train and drive the other one down. The train travels 600 kilometers in the time it takes June to drive 400 kilometers. If the average speed of the train is 40 kilometers faster than the speed of junes car, find the speeds of the train and car.
Click here to see answer by lwsshak3(11628) |
Question 440233: An airplane flying headwind travels the 1800 mile flying distance between two cities in 3 hours and 36 minutes. One the return flight, the distance is traveled in 3 hours. Find the air speed of the plane and the speed of the wind, assuming that both remain constant.
Click here to see answer by stanbon(75887) |
Question 440250: Two planes leave Pittsburgh and Philadelphia at the same time, each going to the other city. One plane flies 25 miles per hour faster than the other. find the air speed of each plane if the cities are 275 miles apart and the planes pass one another after 40 minutes of flying time.
Click here to see answer by jorel1380(3719)  |
Question 440341: tom and latoya take turns cleaning the kitchen after dinner. When tom cleans, he finishes the job in 24min. Latoya cleans the kitchen in 30 min. how long would it take the two of them, working, together, to clean the kitchen?
Click here to see answer by jorel1380(3719)  |
Question 440674: two cars leave an intersection. One car travela north the other east. When the car traveling north had gone 9 mi, the distance between the cars was 3 mi more than the distance traveled by the car heading east. How far had the eastbond car travled?
Click here to see answer by mananth(16946)  |
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