Tutors Answer Your Questions about Travel Word Problems (FREE)
Question 200523: David and Carl go mounting climbing. David starts 30 minutes before Carl and climbs at 18 ft/min. Carl climbs at 20 ft/min. How far up the mountain will they meet.
20t = 18(t +30)
20t = 18t + 540
2t = 540
t = 270
This can't be the correct answer because David has already climbed 540 feet even before Carl starts climbing. Therefore meeting at 270 ft. is the wrong answer. What is the answer and what am I doing wrong?
Click here to see answer by vleith(2825) |
Question 200523: David and Carl go mounting climbing. David starts 30 minutes before Carl and climbs at 18 ft/min. Carl climbs at 20 ft/min. How far up the mountain will they meet.
20t = 18(t +30)
20t = 18t + 540
2t = 540
t = 270
This can't be the correct answer because David has already climbed 540 feet even before Carl starts climbing. Therefore meeting at 270 ft. is the wrong answer. What is the answer and what am I doing wrong?
Click here to see answer by rfer(12670) |
Question 200549: Winter wheat. While finding the amount of seed needed
to plant his three square wheat fields, Hank observed that
the side of one field was 1 kilometer longer than the side
of the smallest field and that the side of the largest field
was 3 kilometers longer than the side of the smallest field.
If the total area of the three fields is 38 square kilometers,
then what is the area of each field?
Click here to see answer by ankor@dixie-net.com(15660)  |
Question 200623: Train Travel. A train leaves Barstow traveling east at 35km/h. One hour later, a faster train leaves Barstow, also traveling east on a parallel track at 40km/h. How far from Barstow will the faster train catch up with the slower one?
Click here to see answer by Alan3354(30993)  |
Question 200747: a cyclist traveled at a rate of 32mph to visit a near by town. The cyclist averaged 10mph on the return trip. If the round trip took 6.3 hours, find the distance to the nearby town.
D=6.3/(32-10)
D=.286363
This is not correct, but I think the opportunity is in the set up.
Thanks for helping in advance.
Click here to see answer by checkley77(12569) |
Question 200936: This question(200898) is in your data base but i am not positive if it is correct. I was told there is a answer. Could somebody else PLEASE look at this problem again and work it to verify if it is correct or wrong. I would really appreciate it..Thanks
Question:
A biker can travel 18 mph with no wind. The same rider can bicycle 8 mi against the wind in the same time it takes to bicycle 12 miles with the wind. What is the speed of the wind?
Click here to see answer by jim_thompson5910(28598) |
Question 200988: POWER FROM A WINDMILL. The power p that can be obtained from a windmill is directly proportionl to the cube of the wind speed s.
(a) Write an equation that expresses this variation.
(b) Find the constant of proportionality for a windmill that produces 96 watts of power when the wind is lowing at 20 mi/h.
(c) How much power will this windmill produce if the wind speed increases to 30mi/h?
Click here to see answer by stanbon(57387) |
Question 200988: POWER FROM A WINDMILL. The power p that can be obtained from a windmill is directly proportionl to the cube of the wind speed s.
(a) Write an equation that expresses this variation.
(b) Find the constant of proportionality for a windmill that produces 96 watts of power when the wind is lowing at 20 mi/h.
(c) How much power will this windmill produce if the wind speed increases to 30mi/h?
Click here to see answer by jojo14344(1512) |
Question 201454: An investment club invested $5000 at an annual simple interest rate of 8.4%. How much additional money must be invested at an annual simple interest rate of 10.5% so that the total interest earned will be 9% of the total investment?
Click here to see answer by rfer(12670) |
Question 201570: A ship went up a stream of 36km in 3 hours, and went down the same distance in 2 hours. What is the km per hour for this ship if there is no speed in this stream? What is this stream's km per hour?
Click here to see answer by Theo(3464)  |
Question 201658: Filling a tank. A water tank has an inlet pipe and a drain
pipe. A full tank can be emptied in 30 minutes if the drain
is opened and an empty tank can be filled in 45 minutes
with the inlet pipe opened. If both pipes are accidentally
opened when the tank is full, then how long will it take to
empty the tank?
Click here to see answer by solver91311(16897)  |
Question 201658: Filling a tank. A water tank has an inlet pipe and a drain
pipe. A full tank can be emptied in 30 minutes if the drain
is opened and an empty tank can be filled in 45 minutes
with the inlet pipe opened. If both pipes are accidentally
opened when the tank is full, then how long will it take to
empty the tank?
Click here to see answer by stanbon(57387) |
Question 201943: John is driving from home to work in a red car at a rate of 55 miles per hour and the distance from his house to work is 67 miles. Bob, in his blue car, drives from home to work at 60 miles per hour and the distance from his house to work is 72 miles. Both men have a 15 minute presentation to give upon their arrival. Who gets to work in the least amount of time?
In the above word problem, what information is not important? Explain why
Click here to see answer by rfer(12670) |
Question 202100: a ski lift carries a skier up a slope at the rate of 800 feet per minute and he returns from the top to the bottom on a path parallel to the lift at an average rate of 2640 feet per minute. How long is the lift if the round trip traveling time is 20 minutes?
Click here to see answer by scott8148(6628)  |
Question 202100: a ski lift carries a skier up a slope at the rate of 800 feet per minute and he returns from the top to the bottom on a path parallel to the lift at an average rate of 2640 feet per minute. How long is the lift if the round trip traveling time is 20 minutes?
Click here to see answer by ankor@dixie-net.com(15660)  |
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