Tutors Answer Your Questions about Travel Word Problems (FREE)
Question 389640: Ok...I think I might be confusing myself (lol)...so I just want to check this out with you all...
"An airplane is traveling due west at 1240ft/sec and Santa's sleigh is traveling due east at 5450ft/sec...
A. If Rudolf can spot airplanes 10,000ft ahead of him and Santa's sleigh and an airplane are 25,000ft away from each other, how many seconds will it take Rudolf to spot the airplane?"
I'm not sure if I need to add both rates together and then divide the distance (either 25,000ft...10,000ft ...or 15,000ft (25,000-10,000ft)) by both rates and then figure out the time that way...?
And...
B. If Santa's sleigh needs 2500ft to turn out of the way of another aircraft, how long does Rudolf have to inform Santa and turn the sleigh if he spots the aircraft when it is 10,000ft away?
Same problem...I'm not sure if I'm setting up this problem right...
Is it 10,000-2500= 7500/(5450+1240)=1.12 sec...?
Thanks for your help! *smiles*
Click here to see answer by jim_thompson5910(28536) |
Question 389547: The horizontal distance of a kite from the boy flying it is 30 m and 50 m of cord is out from the roll. If the wind moves the kite horizontally at the rate of 5 km per hour directly away from the boy, how fast is the cord being released?
Click here to see answer by mananth(12270)  |
Question 390103: 1 friend leaves his house walking 3 mph. The other friend leaves his house walking 2 mph. Both are walking toward each other. Their houses are 4 miles apart. How long will it be before they meet each other?
Here is what I have tried:
4 miles= 3r+ 2r/2
Click here to see answer by mananth(12270)  |
Question 389977: At 6:00 am, the Eilerman family left for Christmas vacation and drove south at an average speed of 40 mph. Their friends, the Knapke's, left two hours later and traveled the same route at an average speed of 55 mph. At what time could the Knapke's expect to overtake the Eilerman's?
Okay, so I know the Knapke's started at 8:00 am. After that, I'm lost. Please help.
Click here to see answer by ankor@dixie-net.com(15646)  |
Question 390112: I cannot figure out how to set up this problem... I created a chart with the information, but just don't feel like I have enough to solve! Can you help?
Airplane A travels 2800 km at a certain speed. Airplane B travels 2000 km at a speed that is 50 km/h faster than Plane A in 3 hours less time. Find the speed of each.
Click here to see answer by mananth(12270)  |
Question 390237: a commuter rides the train to and from work each day. Her husband meets her at the train station and drives her home. One day the commuter leaves work early, catches a different train and arrives at the station one hour ahead of schedule. It being a nice day, she decides to walk toward home. Somewhere along the way she meets her husband, driving from home to pick her up at the usual time. She gets in the car and they drive back, arriving 20 minutes earlier than normal. How long was the commuter walking?
Click here to see answer by ankor@dixie-net.com(15646)  |
Question 390343: you buy a unicycle which has a wheel with a diameter of 25 inches. as you pedal the unicycle, the wheel turns at a rate of 200 rotations every 5 minutes. how many feet do you go on your unicycle after a half an hour?
Click here to see answer by josmiceli(9668)  |
Question 390391: A driver moving at a constant speed sees a log in the road, but it takes time for her to react. During the reaction time, the car keeps going at the same speed. The distance the car travels before the driver breaks is the reaction distance. At 75 miles/hour, the reaction distance is 165 feet. What is the reaction time in seconds?
Click here to see answer by josmiceli(9668)  |
Question 390348: The word problem is:
Boats A and B leave the same point at the same time at right angles. B travels 7 km/h slower than A. After 4 hours they are 68 km apart. Find the speed of each boat.
That is exactly how it is written in the book and I can't figure it out. Can you please help me? If so thank you.
Click here to see answer by ankor@dixie-net.com(15646)  |
Question 390459: A train leaves the station at 6:00pm traveling west at 80mi/h. On a parallel track, a second train leaves the station 3 hours later traveling west at 100mi/h. At what tine will the second train catch up with the first?
Click here to see answer by rfer(12654) |
Question 390466: Trains A and B are traveling in the same direction on parallel tracks. Train A is traveling at 60 miles per hour and train B is traveling at 80 miles per hour. Train A passes a station at 3:25 am. If train B passes the same station at 3:40 am, at what time will train B catch up with train A?
Click here to see answer by mananth(12270)  |
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