Saturday

February 28, 2015

February 28, 2015

Number of results: 46,385

**PLEASE HELP Math**

At noon, ship A is 40 nautical miles due west of ship B. Ship A is sailing west at 24 knots and ship B is sailing north at 22 knots. How fast (in knots) is the distance between the ships changing at 6 PM? (Note: 1 knot is a speed of 1 nautical mile per hour.)
*March 15, 2009 by Randall*

**Calculus **

At noon, ship A is 30 nautical miles due west of ship B. Ship A is sailing west at 23 knots and ship B is sailing north at 17 knots. How fast (in knots) is the distance between the ships changing at 4 PM? (Note: 1 knot is a speed of 1 nautical mile per hour.) Please help!
*July 28, 2013 by Anonymous*

**Calculus Please help!**

At noon, ship A is 50 nautical miles due west of ship B. Ship A is sailing west at 18 knots and ship B is sailing north at 23 knots. How fast (in knots) is the distance between the ships changing at 3 PM? (Note: 1 knot is a speed of 1 nautical mile per hour.)
*February 28, 2014 by ALI*

**grade 7 math**

Uniform Motion Related Problem Port A is 25 km downriver from port B. At noon a tugboat leaves port B and travels upstream at 15 kph. At 3 p.m. a hyrodrofoil leaves Port A travelling upstream at 50 kph. At what time will the hydrofoil pass the tugboat?
*January 19, 2015 by Krystal*

**math**

At noon, ship A is 30 nautical miles due west of ship B. Ship A is sailing west at 21 knots and ship B is sailing north at 15 knots. How fast (in knots) is the distance between the ships changing at 4 PM? (Note: 1 knot is a speed of 1 nautical mile per hour.) this is a cal ...
*July 9, 2011 by lisa*

**math**

At noon, ship A is 30 nautical miles due west of ship B. Ship A is sailing west at 21 knots and ship B is sailing north at 15 knots. How fast (in knots) is the distance between the ships changing at 4 PM? (Note: 1 knot is a speed of 1 nautical mile per hour.) this is a cal ...
*July 9, 2011 by lisa*

**math**

A ship sails due north from a position 5 degrees, 28' South Latitude to position 6 degrees, 43' North Latitude. Given that one minute of latitude is equivalent to 1 nautical mile, the ship has sailed a distance of A. 75 nautical miles B. 371 nautical miles C. 731 nautical ...
*August 14, 2014 by Demi*

**math**

A motorcycle leaves Colorado Springs traveling north at an average speed of 47 miles per hour. One hour later, a car leaves Colorado Springs traveling south at an average speed of 54 miles per hour. How long after the motor cycle leaves will it take until they are 552 miles ...
*May 31, 2011 by elaine*

**Algebra**

A ship leaves NY for San Fransisco on the first of every month at noon. At the same time, a ship leaves San Fransisco for NY. Each ship arrives exactly 6 months after it leaves. If you were on a ship from NY, how many ships from San Fransisco would you meet?
*March 2, 2014 by glass0*

**mayh**

A ship travels at a constant speed of 25 kilometres per hour (Kph) in a straight line from port A located at position (x_A, y_A) =(-100, -100) to port B at (x_B ,y_B )=(300 ,100). A) Find parametric equation for the line of travel of the ship .your equation should be in terms ...
*February 16, 2011 by emy*

**math**

A train leaves the station at 9:00 pm traveling east at 36 miles per hour. A second train leaves the station at 10:00 pm traveling west at 42 miles per hour. At what time will both trains have traveled the same distance? I need help solving it :)
*October 4, 2012 by ash*

**algebra**

A train leaves the station at 9:00 pm traveling east at 36 miles per hour. A second train leaves the station at 10:00 pm traveling west at 42 miles per hour. At what time will both trains have traveled the same distance? I need help solving it :)
*October 4, 2012 by ash*

**maths**

A ship sails on a steady course bearing 106 degrees from A to B.If B is 76 nautical miles further east than A,find,to the nearest nautical mile,how far the ship has sailed?
*March 8, 2013 by Shane*

**trig**

A ship is headed due north at a constant 20 miles per hour. Because of the ocean current, the true course of the ship is 15°. If the currents are a constant 18 miles per hour, in what direction are the currents running? (Enter your answers as a comma-separated list. Round your...
*November 16, 2012 by janice*

**Math**

A shipe leaves NY for San Fransisco on the first of every month at noon. At the same time, a ship leaves San Fransisco for NY. Each ship arrives exactly 6 months after it leaves. If you were on a ship from NY, how many ships from San Fransisco would you meet?
*March 2, 2014 by -7-*

**physics**

A ship leaves the island of Guam and sails a distance 295 at an angle 35.0 north of west. How far must it sail so that its resultant displacement will be 100 directly east of Guam?
*October 3, 2011 by ahmed *

**mathematics**

a ship which started at port p, sailed 15 km due south to port q , and then a further 20 km due west to port r. calculate pr , the shortest distance of the ship from the port where the journey started .
*March 1, 2014 by patrice*

**geometry**

Two ships leave a harbor at the same time, traveling on courses that have an angle of 140 degrees between them. If the first ship travels at 26 miles per hour and the second ship travels at 34 miles per hour, how far apart are the two ships after 3 hours?
*November 4, 2010 by Rac*

**10th grade**

Two ships leave a harbor at the same time, traveling on courses that have an angle of 140 degrees between them. If the first ship travels at 26 miles per hour and the second ship travels at 34 miles per hour, how far apart are the two ships after 3 hours?
*November 4, 2010 by Rac*

**math**

Ship A, 15 miles of 0 is moving west at 20 mile per hour, ship B, 60 miles south of 0 is moving north at 15 mile per hour. are they approaching or separating after 1 hr and at what rate? are they approaching or separating after 3 hrs? when are they nearest to one another? ...
*February 23, 2014 by rhavenrock*

**algebra 2 **

two trains leave the dallas port going in opposite directions. if one train goes 56 miles per hour, and the other goes 52 miles per hour how long will it take them to be 363 miles apart? how do i set up this problem?
*September 23, 2012 by belle *

**Dyanamics**

Two ships A&B leave port at same time the ship A is north-west at 32km/hr & ship B is 40degree south of west at 24 m/hr determine 1)the speed of ship B relative to ship A 2)At what time they will be 150km apart
*December 6, 2013 by vinod*

**Math**

A ship leaves England for the Strait of Magellan. It is traveling at a constant speed of eight knots and takes 41 days to reach the Strait of Magellan. The ship reaches the Strait of Magellan at the exact time of day that it left England. How far did the ship travel? Choose ...
*December 9, 2014 by ana*

**Calc**

At noon, ship A is 100km west of ship B. Ship A is sailing south at 30km/h and ship B is sailing north at 15km/h. How fast is the distance between the ships changing at 4:00pm?
*November 23, 2013 by Anon*

**trig**

A lighthouse is 14 miles east of a dock. A ship sails N33degreesE from the dock. What will be its bearing from the lighthouse after having sailed 10 miles?
*January 2, 2014 by renzkie*

**math**

Train leaves a stationa traveling at 60 miles per hour. Eight hours later train B leaves the same station traveling in the same direction at 80 miles per hour. How long does it atke for train B to catch up to train A.?
*October 14, 2010 by Matt*

**Algebra**

A train leaves a city heading west and travels at 50 miles per hour. Three hours later, a second train leaves from the same place and travels in the same direction at 65 miles per hour. How long will it take for the second train to overtake the first train.
*June 1, 2010 by Avery*

**Algebra**

A ship travels from New York to southampton, england at 33 miles per hour. A plane traveling 605 miles per hour takes 104 hours less time to make the same trip. How far apart are the two cities?
*June 1, 2010 by Avery*

**math**

A ship sails from a port,P, on a course of 060 degrees for 15km to a buoy ,Q. It then changes course in a direction 120 degrees from Q for 25 km to a rig R.
*November 17, 2011 by Anonymous*

**trig**

It is 4.7km from Lighthouse A to Port B. The bearing of the port from the lighthouse is N73E. A ship has sailed due west from the port and its bearing from the lighthouse is N31E. How far has the ship sailed from the port?
*November 18, 2012 by Ashley*

**MATH**

WEIGHTED AVERAGE A SHIP TRAVELS FROM NEW YORK TO SOUTHAMPTON ENGLAND AT 33 MILES PER HOUR. A PLANE TRAVELING 605 MILES PER HOUR TAKES 104 HOURS LESS TIME TO MAKE THE SAME TRIP. HOW FAR APART ARE THE TWO CITIES?
*September 30, 2008 by ````````````````````````````````````````````````````````````````````````*

**Calculus 1**

Related Rates I am having trouble finding the equation to use to fit this all together. At noon, ship A is 100km west of ship B. Ship A is sailing south at 35 km/s and ship B is sailing north at 25 km/s. How fast is the distance between the ships changing at 4:00pm.
*October 10, 2013 by Juan*

**Calculus 1**

Related Rates I am having trouble finding the equation to use to fit this all together. At noon, ship A is 100km west of ship B. Ship A is sailing south at 35 km/s and ship B is sailing north at 25 km/s. How fast is the distance between the ships changing at 4:00pm.
*October 10, 2013 by Juan*

**Calculus 1**

Related Rates I am having trouble finding the equation to use to fit this all together. At noon, ship A is 100km west of ship B. Ship A is sailing south at 35 km/s and ship B is sailing north at 25 km/s. How fast is the distance between the ships changing at 4:00pm.
*October 10, 2013 by Juan*

**Calculus 1**

Related Rates I am having trouble finding the equation to use to fit this all together. At noon, ship A is 100km west of ship B. Ship A is sailing south at 35 km/s and ship B is sailing north at 25 km/s. How fast is the distance between the ships changing at 4:00pm.
*October 10, 2013 by Juan*

**Calculus 1**

Related Rates I am having trouble finding the equation to use to fit this all together. At noon, ship A is 100km west of ship B. Ship A is sailing south at 35 km/s and ship B is sailing north at 25 km/s. How fast is the distance between the ships changing at 4:00pm.
*October 10, 2013 by Juan*

**Sunset**

At noon, ship A is 50 miles north of ship B and is headed south at 16mph. Ship B is headed west at 12 mph. At what time are they closest together, and what is the minimum distance between them?
*October 24, 2012 by Ali*

**pre-calc**

A ship travels 200km west from port and then 240km due south before it is disabled. Illustrate this in a vector diagram. Usa trigonometry to find the course that a rescue ship must take from port in order to reach the disabled ship. i dont know where to begin, could someone ...
*March 30, 2008 by Devon*

**phyics**

A crippled ship is being assisted to port. The motor is stuck, and is moving the boat east with a speed of 15 km/h. The current is flowing a 9 km/h at 30 degrees east of south. A. If the maximum speed of the tugboat which is trying to rescue the disabled ship is 35 km/h, ...
*November 9, 2014 by morgan*

**Trig**

A sail boat on lake Huron leaves Southampton and sails 20degrees west of north of 20km. At the same time, a fishing boat leaves Southampton and sails 30degrees west of south for 15 km. At this point, hot far apart are the boats, to the nearest metre? ( the answer is 4139m, but...
*July 21, 2010 by Sonia*

**Sine, cosine law**

A sail boat on lake Huron leaves Southampton and sails 20degrees west of north of 20km. At the same time, a fishing boat leaves Southampton and sails 30degrees west of south for 15 km. At this point, hot far apart are the boats, to the nearest km? ( the answer is 4139 km, but ...
*July 20, 2010 by Nada*

**calculus**

At noon, ship A is 110 km west of ship B. Ship A is sailing east at 25 km/h and ship B is sailing north at 15 km/h. How fast is the distance between the ships changing at 4:00 PM?
*October 13, 2011 by John*

**Calculus**

At noon, ship A is 180 km west of ship B. Ship A is sailing east at 40 km/h and ship B is sailing north at 30 km/h. How fast is the distance between the ships changing at 4:00 PM?
*November 30, 2011 by Kristy*

**Calculus**

At noon, ship A is 150 km west of ship B. Ship A is sailing east at 35 km/h, and ship B is sailing north at 25 km/h. How fast is the distance between the ships changing at 4:00 P.M.?
*October 8, 2013 by Sckricks*

**calculus**

At noon, ship A is 150 km west of ship B. Ship A is sailing east at 25 km/h and ship B is sailing north at 20 km/h. How fast is the distance between the ships changing at 4:00 PM?
*November 3, 2013 by Anonymous*

**calculus**

At noon, ship A is 150 km west of ship B. Ship A is sailing east at 25 km/h and ship B is sailing north at 20 km/h. How fast is the distance between the ships changing at 4:00 PM?
*November 3, 2013 by Anonymous*

**calculus**

A ship is running at 14 3/4 knots (nautical miles per hour) for 7 1/2 hours. How far does the ship travel?
*January 24, 2010 by Jammie*

**calculus**

A ship is running at 14 3/4 knots (nautical miles per hour) for 7 1/2 hours. How far does the ship travel?
*January 24, 2010 by Jammie*

**math**

Two helicopters leave Springfield, IL at the same time. One travles north at 27 miles per hour and the other travels west at 120 miles per hour. How far apart are they after 3 hrs? (Hint: Use d=rt to find the distance traveled by each helicopter.) I know that d=27*3, d=81 and ...
*January 27, 2010 by Rmz*

**Math**

t noon, ship A is 30 nautical miles due west of ship B. Ship A is sailing west at 16 knots and ship B is sailing north at 22 knots. How fast (in knots) is the distance between the ships changing at 7 PM? (Note: 1 knot is a speed of 1 nautical mile per hour.) Note: Draw ...
*October 15, 2009 by Salman*

**Calculus**

At noon, ship A is 50 nautical miles due west of ship B. Ship A is sailing west at 20 knots and ship B is sailing north at 16 knots. How fast (in knots) is the distance between the ships changing at 6 PM? (Note: 1 knot is a speed of 1 nautical mile per hour.) Note: Draw ...
*November 22, 2009 by Bobby*

**maths**

A motorist travels 120 miles to his destionation at an average speed of 60 miles per hour and returns to the starting point at an average speed of 40 miles per hour.His average speed for the entire trip is 1. 53 miles per hour 2. 52 miles per hour 3. 50 miles per hour 4. 48 ...
*August 13, 2014 by peter*

**Math**

Two trains are travelling on parallel tracks both going from station A to station B.Train 1 leaves at 8 am, at 65 miles per hour. Train 2 leaves at 10 am, at 90 miles per hour. At what time will train 2 catch up to train 1?
*July 29, 2014 by Anonymous*

**Maths**

How can answer this question ,help please? Information: A ship travels at a constant speed of 25 kilometres per hour (Kph) in a straight line from port A located at position (x_A, y_A) =(-100, -100) to port B at (x_B ,y_B )=(300 ,100) During its journey ,the ship passes two ...
*May 5, 2011 by Claire*

**math**

four diesel ships left a port at noon;january2,1953.the first ship returns to this port every 4 weeks, the second every 8, the third every 12,and the fourth every 16.when did all four ships meet again in the port?
*December 4, 2008 by shay*

**Calculus**

At noon, ship A is 10 nautical miles due west of ship B. Ship A is sailing west at 16 knots and ship B is sailing north at 24 knots. How fast (in knots) is the distance between the ships changing at 3 PM? This is what I got but it's not right 28.727
*September 25, 2009 by Z32*

**Calc**

At noon, ship A is 40 nautical miles due west of ship B. Ship A is sailing west at 19 knots and ship B is sailing north at 20 knots. How fast (in knots) is the distance between the ships changing at 7 PM? i really dont have any idea what to do...
*February 20, 2012 by UCI Student*

**Calculus**

"At 9am ship A is 50 km east of ship B. Ship A is sailing north at 40km/h and ship B is sailing south at 30km/h. How fast is the distance between them changing at noon?" I never know how to set questions like this up!
*June 16, 2010 by Stuck*

**math**

At noon, ship A is 20 nautical miles due west of ship B. Ship A is sailing west at 24 knots and ship B is sailing north at 25 knots. How fast (in knots) is the distance between the ships changing at 5 PM? I have tried multiple times but keep getting confused.
*October 5, 2014 by Sara*

**calculus**

At noon, ship A is 10 nautical miles due west of ship B. Ship A is sailing west at 18 knots and ship B is sailing north at 22 knots. How fast (in knots) is the distance between the ships changing at 4 PM?
*October 26, 2009 by Anonymous*

**calculus**

At noon, ship A is 30 nautical miles due west of ship B. Ship A is sailing west at 17 knots and ship B is sailing north at 23 knots. How fast (in knots) is the distance between the ships changing at 3 PM?
*October 29, 2009 by Ash*

**Calc**

At noon, ship A is 50 nautical miles due west of ship B. Ship A is sailing west at 20 knots and ship B is sailing north at 20 knots. How fast (in knots) is the distance between the ships changing at 4 PM?
*October 28, 2010 by Pierre*

**math**

At noon, ship A is 50 nautical miles due west of ship B. Ship A is sailing west at 16 knots and ship B is sailing north at 21 knots. How fast (in knots) is the distance between the ships changing at 3 PM
*November 5, 2010 by Rick*

**Calculus **

At noon, ship A is 10 nautical miles due west of ship B. Ship A is sailing west at 16 knots and ship B is sailing north at 24 knots. How fast (in knots) is the distance between the ships changing at 3 PM?
*March 27, 2012 by Reanna *

**Calculus**

At noon, ship A is 10 nautical miles due west of ship B. Ship A is sailing west at 24 knots and ship B is sailing north at 19 knots. How fast (in knots) is the distance between the ships changing at 6 PM?
*May 24, 2013 by Sam*

**physics**

. Compared a car (mass of 2000 kg) moving at 10 miles per hour, how much kinetic energy (in Joules) does that same car have when it moves at 20 miles per hour? At 50 miles per hour? 75 miles per hour?
*March 12, 2012 by Hector*

**trig**

Illustrate and solve. A monument near a dock is 12 miles east of a ship. After the ship has sailed 7 miles, the monument bears N62degreesE. In what direction is the ship sailing?
*January 2, 2014 by renzkie*

**Math**

A distressed ship is 10 miles south and 8 miles east of a coast guard station. a) What bearing should the coast guard boat take to reach the distressed ship? b)How many miles will the coast guard boat travel? c)If the coast guard boat is traveling 30 miles per hour, how long ...
*January 6, 2015 by Andrew*

**Math [urgent]**

1. The sum of three numbers is 301. The second number is 3 less than twelve times the first number. The third number is 4 more than seven times the number. Find the three numbers. ~~~~~~ 2. Two friends live 15 miles apart. One day they decide to jog and meet each other. Tanya ...
*September 24, 2009 by Jessica*

**Algebra**

At 3PM, two ships started sailing toward each other from ports which were 265 miles apart at average rates of 18 and 23 miles per hour. At what time were the ships still 60 miles apart? Let t=time=5 hours Let 18t= first ship=90 Let 23t= second ship=115 18t+23t+60=265 41t+60=...
*October 28, 2007 by anonymous*

**calculus**

Starting at point A, a ship sails 57 km on a bearing of 188°, then turns and sails 37 km on a bearing of 330°. Find the distance of the ship from point A.
*April 8, 2011 by Anonymous*

**physics**

A ship leaves the island of Guam and sails a distance 280 at an angle 39.0 north of west. 1.In which direction must it now head so that its resultant displacement will be 125 directly east of Guam? (Express your answer as an angle measured south of east) 2.How far must it sail...
*February 13, 2013 by meme*

**plz help me in physics **

A ship leaves the island of Guam and sails a distance 295km at an angle 35.0 north of west. a:In which direction must it now head so that its resultant displacement will be 100km directly east of Guam? (Express your answer as an angle measured south of east) b:How far must it ...
*October 5, 2011 by ahmed *

**Math (Pre-cal)**

I can't seem to figure this out. A ship leaves at noon and travels due West at 20 knots. At 2:00 it changes to N54°W...Find the bearing and the distance FROM port at 3:00 pm. I've looked at this program for a while but can't figure it out.
*January 26, 2011 by Dragon*

**physics- i need help ASAP**

A ship leaves the island of Guam and sails a distance 265 km at an angle 41.0 north of west. ***In which direction must it now head so that its resultant displacement will be 130 km directly east of Guam? (Express your answer as an angle measured south of east) ***How far must...
*February 29, 2012 by Sharefa*

**physics **

A ship leaves the island of Guam and sails a distance 280 at an angle 38.0 north of west.In which direction must it now head so that its resultant displacement will be 115 directly east of Guam? (Express your answer as an angle measured south of east) How far must it sail so ...
*March 7, 2012 by muhammad*

**math**

Ronald made a trip of 450 miles in 8 hours. Before noon he avg. 60 miles per hour, and after noon he avg. 50 miles per hour. At what time did he begin his trip and when did it end?
*October 18, 2007 by Cecilia*

**calculus**

At noon, ship A starts sailing due east at the rate of 20km/hr. Ath the time, ship B, which is located 100km east of ship A initially, starts sailing on a course 60 degrees north of west at the rate of 10km/hr. How fast is the distance between the two ships changing one hour ...
*March 24, 2011 by marc*

**pre calc**

Lighthouse B is 8 miles west of lighthouse A. A boat leaves A and sails 5 miles. At this time, it is sighted from B. If the bearing of the boat from B is N63E, how far from B is the boat? The boat is either ___ miles or ____ miles from lighthouse B, to the nearest tenth of a ...
*April 26, 2011 by lauri*

**Math**

A boat travels 74 miles on a course with direction 34 degrees and then changes its course to travel 58 miles at 53 degrees. How far north and how far east has the boat traveled on its 132-mile trip? A 87.7 miles east and 44.3 miles north B 35.7 miles east and 96.3 miles north ...
*May 5, 2014 by Ana*

**math**

A ship is 400 miles directly north of the tahiti and is sailing south at 20mi/hr. another ship is 300 miles east of tahiti and is sailing west at 15mi/hr. at what rate is the distance between the ships changing?
*January 1, 2011 by stephen*

**distance**

1 ship leaves port everyday. After 30 days it returns. How many ships will it see on the way back ?
*March 15, 2012 by neal*

**trig**

Help! Ships A and B leave port at the same time and sail on straight paths making an angle of 60 degrees with each other. HOw far apart are the ships at the end of 1 hour if the speed of ship A is 25 km/h and that of ship B is 15 km/h?
*April 2, 2014 by Anonymous*

**Math**

A truck traveling at an average rate of 45 miles per hour leaves a rest stop. Fifteen minutes later a car traveling at an average rate of 60 miles per hour leaves the same rest stop traveling the same route. How long will it take for the car to catch up with the truck?
*February 12, 2013 by nick*

**Math Word Problem**

A metra commuter train leaves Union Station in Chicago at 12 noon. Twp hours later an Amtrak train leaves on the same track, traveling at an average speed that is 50 miles per hour faster than the Metra train. At 3PM the Amtrak train is 10 miles behind the commuter train. How ...
*September 16, 2010 by amy*

**Calculus **

"At 9am ship A is 50 km east of ship B. Ship A is sailing north at 40km/h and ship B is sailing south at 30km/h. How fast is the distance between them changing at noon?" I can never get these type of questions where two ships are heading in different directions and one is ...
*June 17, 2010 by Stuck*

**math**

Two cars begin driving toward each other from towns that are 150 miles apart. The first car is traveling 45 miles per hour, and the second is traveling 55 miles per hour. If each leaves at 2:15 pm, when will the two cars pass on the road?
*July 17, 2013 by vincent*

**Algebra**

Two trains leave Raleigh at the same time, one traveling north, the other south. The first train travels at 50 miles per hour and second at 60 miles per hour. In how many hours will the trains be 275 miles apart?
*June 1, 2010 by Avery*

**calculus**

An airplane flying west at 300 miles per hour goes over the control tower at noon, and a second airplane at the same altitude, flying north at 400 miles per hour, goes over the tower an hour later. How fast is the distance between the airplanes changing at 2:00 P.M.?
*January 17, 2012 by becca*

**Calculus**

at noon A is 150 km west of a ship B .Ship A is sailling east at 35 km/h , and ship B is sailling north at 25 km/h. How fast is the distance between the ships changing at 4 pm ?
*March 15, 2012 by Sandra g*

**physics**

Ships A and B leave port together. For the next two hours, ship A travels at 30.0 in a direction 75.0 west of north while the ship B travels 25.0 east of north at 40.0 . What is the distance between the two ships two hours after they depart? What is the s
*October 6, 2011 by Anonymous*

**math**

to avoid a large shallow reef, a ship is set a course from point a and traveled 25 miles east to point b. the ship then turned a traveled 35 miles south to point c.if the ship could have gone in a straight line from point a to point c. how many miles could it have saved?
*September 18, 2012 by ramel*

**Geometry**

A ship sails 5 km from a port A on a bearing of 85 degrees and then 6 km on a bearing of 50 degrees. Calculate the distance and bearing from A.
*August 23, 2013 by Saman*

**Calculus**

A car passes by a certain point at time t = 0 hours heading east at 40 miles per hour. At t = 1 hour another car passes by the same point heading north at 50 miles per hour. What is the functiuonthat equals the distance between the two cars?
*June 8, 2011 by Liz*

**maths**

A ship travels at a constant speed of 25 kilometers per hour (kph) in a straight line from port A located at position (xA, yA) = (−100,−100) to port B at (xB, yB) = (300, 100). (a) (i) Find the equation of the line of travel of the ship. (ii) Find the direction of ...
*May 9, 2011 by albert*

**algebra**

A jogger leaves home and runs at a constant speed of 4 miles per hour. Nine minutes later, a bicyclist follows along the same route at a constant speed of 15 miles per hour. Find the bicyclist's travel time needed to catch the jogger.
*September 1, 2011 by Alice*

**physics**

a daredevil on a motorcycle leaves the ramp with a speed of 35.0 miles per hour. if his speed is 33.0 miles per hour when he reaches the peak of his path, what is the maximum height that he reaches. ignore friction and air resistance
*November 21, 2011 by nelo*

**math**

substitute to find the value of the expression. A train must cover a distance of 2398 miles. The velocity, in miles per hour, of the train is where t is the time,in hours, to complete the trip. If the train completes the trip in 22 hours what is it's velocity? A) 109 miles per...
*December 20, 2009 by Kay Kay*

**math (calc)**

At noon, ship A is 150 km west of ship B. Ship A is sailing east at 35 km/h and ship B is sailing north at 25 km/h. How fast is the distance between the ships changing at 4:00 pm. Find the intervals of increase or decrease find the local maxiumum and minimum values find the ...
*July 8, 2008 by jeff*

**math**

A cyclist bikes x distance at 10 miles per hour and returns over the same path at 8 miles per hour. What is the cyclist's average rate for the round trip in miles per hour? ( please help me ! )
*March 6, 2010 by thommini*

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