Thursday

November 27, 2014

November 27, 2014

Number of results: 33,937

**Science**

when a kayak races downstreamm, its speed is clocked at 3 m/s. How far does the kayak travel in 35 s? in 1 hour?
*March 9, 2011 by Sydney*

**math**

A car travels 55 miles per hour and a plane travels 15 miles per minute. How far does the car travel when the plane travels 500 miles?
*December 14, 2009 by Khari*

**physics**

A ball starts from rest and rolls down a hill with uniform acceleration, traveling 200m during the second 4.8s of its motion. How far did it travel the first 4.8 seconds
*September 16, 2014 by cynthia*

**Algebra(urgent)**

a boat moves through still wather at x kilometers(km) per hour. it travels 24km up stream against a current of 2km per hour and then returns with the current. The rate upstream is x-2 because the boat moves against the current and the rate downstream is x+2 because the boat ...
*March 31, 2011 by Kelvin*

**VNS,Math**

A man walked into the road at 4 miles per hour and returned over the same road at the rate of 3 miles per hour. If he completed the entire trip in 7/2 hours,how far in miles in to the roads did he walk?
*October 9, 2013 by Nahar*

**rates **

a homing pigeon flies 180km in 3hours . at this average , how far could the pigeon travel in 4 hour
*November 14, 2013 by rian*

**kbcc**

A car is initially traveling at 5 m/s when its begins its ascent up a 30 degree incline.how far up does the car travel before coming to rest
*April 5, 2011 by serge *

**Math**

What is 9 kilometers per hour converted into feet per minute? A. about 1.77 feet per minute B. about 45.7 feet per minute C. about 492 feet per minute D. about 29,520 feet per minute
*January 30, 2013 by sara m. baker*

**math**

Sue left her home at 6 A.M. driving her car at the rate of 50 miles per hour. At 8 A.M. her brother Kevin drove after her along the same highway, traveling at the rate of 60 miles per hour, in how many hours did Kevin pass Sue.
*July 29, 2014 by Chris*

**Physics**

A car drives up a straight hill at a constant speed of 60 kilometers per hour. A truck drives over the crest of the hill at a constant speed of 60 miles per hour. What is the net force on the car and on the truck? 1. both not zero 2. not zero; zero 3. both zero 4. zero; not zero
*October 13, 2011 by Mathew*

**physics**

A train is travelling 20metres per second, accelerates at 0,5 cubic metres per second for 30 seconds.How far will it travel in this time?
*February 17, 2010 by Lutho *

**physics**

he speed of light in a vacuum is about 3.00 108 m/s how many kilometers a pulse from a laser beam travels in exactly 3.9 hours.
*September 5, 2011 by Anonymous*

**word problem!!! algebra**

at noon, a cargo van crosses an intersection at 30 mph. At 12:30 pm, a car crosses the same intersection traveling in the opposite direction. At 1 pm, the van and car are 54 miles apart. How fast is the car traveling? I know the answer is 48 mph, but can you set it up for me? ...
*March 11, 2007 by susan*

**Math**

John has two part time jobs. He works no more than 40 hours per week. He earns $6 per hour from the first job and $8 per hour from the second job. To cover his expenses, he needs to earn at lease $210 per week. Which of the following system of linear inequalities shows the ...
*May 14, 2012 by Shadia*

**English**

I forgot to include the following sentences. 3)What kind/type of school do you go to? I go to a private school. 4) How do you spend your free time? What do you do in your free time? 5) How far do you walk to school? How many kilometers do you walk to school? I walk 3 ...
*October 18, 2010 by Franco*

**Math**

Tristan runs 5 kilometers in 45 minutes. His goal is to run the same distance in 40 mins by next year. How many kilometres per hour does he need to run next year to reach his goal?
*May 10, 2011 by Colton*

**Physics**

a car traveling at a velocity of 90 km/h, when you see a dog step into the road 50 m ahead. you hit the breaks hard to get maximum deceleration of 7.5 m/s^2. how far will you travel before stopping?
*September 7, 2011 by bl*

**Algebra**

Two cars start at the same point at Alexandria, verginia, and travel 2 opposite directions. One car travels 5 miles per hour faster than the other car. After 4 hours, the two cars are 420 miles apart. Find the speed of each car.
*March 28, 2013 by Lora*

**MATh (distance)**

Kesha dove from Buffalo to Syracuse at an average rate of 48miles per hour. On the return trip along the same road she was able to travel at an average rate of 60 miles per hour.The trip from Buffalo to Syracuse took one- half hour longer than the return trip. How long did the...
*October 13, 2011 by Tiffany *

**Math**

5. Raul works 2 hours a day after school, Monday through Friday. On Saturdays he works 8 hours at $2 more per hour than on weekdays. If he makes $142 per week, how much does he make per hour on weekdays.
*September 25, 2013 by Stephanie*

**MATH ANALYSIS**

How do i do this? According to Kepler's Laws, planets have elliptical orbits, with the sun at one of the foci. The farthest Pluto gets from the sun is 7.4 billion kilometers. The closest it gets to the sun is 4.4 billion kilometers. Find the equation of the orbit of Pluto.
*December 7, 2009 by anonymous*

**physics**

A ceiling fan of radius 30 cm runs at 76 rev/min. How far does the tip of the fan blade travel in 2 hour(s)?
*October 29, 2010 by Anonymous*

**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*

**science**

how far will a stone travel if its thrown off a 78.4 meter cliff at 5 meters per second
*October 29, 2009 by jareth*

**hmsa**

Use the fact that speed of light in a vacum is about 3.00×10 to the 8 m/s to determine how many kilometers a pulse from a laser beam travels in exactly 1.5 hour (s)
*September 16, 2014 by lenworth*

**bob help**

how do u come up w/the answer? Two cyclists start biking from a trail's start 3 hours apart. The second cyclist travels at 10 miles per hour and starts 3 hours after the first cyclist who is traveling at 6 miles per hour. How much time will pass before the second cyclist ...
*September 11, 2008 by test comin up*

**Math word problem**

Two cyclists start biking from a trail's start 3 hours apart. The second cyclist travels at 10 miles per hour and starts 3 hours after the first cyclist eho is traveling at 6 miles per hour. How much time will pass before the second cyclist catches up with the first from the ...
*March 4, 2009 by Anonymous*

**math**

Sue is in an airplane which travels at a constant 300 kilometers per hour. The angle of climb of the airplane is 30 ∘. How long (in seconds) would it take from takeoff, before the airplane reaches 3000 meters, when Sue can access Wifi and work on the rest of the weekly ...
*July 25, 2013 by ayan*

**Technology**

Say you have a financial consulting corporation that has four satellite offices in the US and employs 300 fulltime employees and 20 of those travel 2 to 4 days a week. These 20 employees do not have access to email or other company programs while they are traveling. The ...
*June 6, 2008 by Becky*

**Help! Calculus**

An elevator in a high rise building accelerates and decelerates at the rate of 1 foot per second squared. Its maximum speed is 8 feet per second. It starts from rest, accelerates to its maximum speed and stays at that maximum speed until it approaches its destination where it ...
*November 6, 2013 by Kimmie*

**calculus HELP!**

An elevator in a high rise building accelerates and decelerates at the rate of 1 foot per second squared. Its maximum speed is 8 feet per second. It starts from rest, accelerates to its maximum speed and stays at that maximum speed until it approaches its destination where it ...
*November 6, 2013 by Kimmie*

**science**

An elevator in a high rise building accelerates and decelerates at the rate of 1 foot per second squared. Its maximum speed is 8 feet per second. It starts from rest, accelerates to its maximum speed and stays at that maximum speed until it approaches its destination where it ...
*November 6, 2013 by Jenna*

**algebra **

Two cyclists start biking from a trail's start 3 hours apart. The second cyclist travels at 10 miles per hour and starts 3 hours after the first cyclist who is traveling at 6 miles per hour. How much time will pass before the second cyclist catches up with the first from the ...
*April 10, 2010 by vera*

**Math**

Janet drove 304 Kilometers and the trip took 4hours. How fast was Janet traveling?
*October 15, 2012 by Kay*

**help i have no idea!!!!!!**

3.Sam is a mailman who delivers mail in a mail truck. His route is 2 kilometers long. He usually starts his route at 8:00 am and finishes by 12:00pm If Sam decided to get a bigger route that is 12 kilometers long, what does his average speed need to be to start and finish at ...
*March 18, 2014 by eduarda*

**MATH**

Travel Time A company president flew 680 miles one way in the corporate jet but returned in a smaller plane that could fly only half as fast. If the total travel time was 6 hours, find the speeds of the planes. how would I set up this problem?
*September 25, 2008 by jennifer*

**Math- Multi-step word problems**

A plane traveling from Chicago to Boston with a tailwind of 10 miles per hour takes 4 hours. The return trip in the same wind, which is now a headwind, takes the same plane 4 hours and 9 minutes. According to this problem, about how far is it from Chicago to Boston? 1800 miles...
*October 1, 2014 by Kitty*

**ma**

A car travels 55 miles per hour and a plane travels 15 miles per minute. How far does the car travel when the plane travels 500 miles?
*September 1, 2012 by kely*

**science**

if i am 11 how old will i be when the life that is leaving the star arcturus reach the earth and how far in kilometers will it have traveled
*January 24, 2011 by madelyn*

**trig/math**

Two ships leave a harbor together traveling on courses that have an angle of 124° between them. If they each travel 511 miles, how far apart are they (to the nearest mile)?
*March 31, 2010 by ana*

**math**

tom was paid $4.50 per hour for painting a fence and $ 6.50 per hour for mowing grass. He worked 7 hours and earned $39.50. How many hours did it take him to paint the fence/
*September 2, 2010 by mi*

**Phyics**

The radius of Earth is 6.37 103 km. Find the speed, in km/h, resulting from the rotation of Earth, of a person standing on the equator. v=2(pi)(r)/T v=2(pi)(6.37e3)/24 v=1.67e3 km/h how would you convert this to m/s. it does not seem to be working for me and I cannot find my ...
*August 16, 2007 by Jayd*

**physics**

Use the fact that the speed of light in a vacuum is about 3.00 108 m/s to determine how many kilometers a pulse from a laser beam travels in exactly 4.9 hour(s)
*August 23, 2011 by Anonymous*

**physics**

Use the fact that the speed of light in a vacuum is about 3.00 108 m/s to determine how many kilometers a pulse from a laser beam travels in exactly 4.9 hour(s)
*August 23, 2011 by Anonymous*

**Math**

Manny is a plumber and charges $50 when he visits a client and $30 per hour for every hour he works. His bill can be expressed as a function of hours, x, with the function f(x)= 50 +30x. Which statement explains the meaning of the inverse of the function? A)Total bill as a ...
*July 23, 2008 by Haru*

**algebra**

for a question like: car A was traveling at 25miles/hour for 3 hours. Car B was traveling at 30mph for 6 hours. When will they meet?
*May 27, 2008 by jenny*

**Algebra**

Two cars start at the same point at Alexandria, verginia, and travel Ans 50mph, 55mph 2 opposite directions. One car travels 5 miles per hour faster than the other car. After 4 hours, the two cars are 420 miles apart. Find the speed of each car.
*March 28, 2013 by Lora*

**algebra**

The cost, c(x) in dollars in per hour of running a certain fishing boat is modeled by the function c(x)= 0.9x^2 - 18.1x + 135.1, where x is the speed in km/hour/ At what approximate speed should the boat travel to achieve minimum cost?
*September 25, 2014 by Sarah*

**math**

If Sue worked 6 3/4 hours on Monday, 4 hours on Tuesday, 7 3/4 hours on Wednesday, 8 hours on Thursday, and 5 1/2 hours on Friday, calculate her weekly wage at $7.20 per hour.
*April 8, 2014 by justin*

**Physical Science**

An object travels 6m in the first second of travel, 6m again durning the second second of travel, and 6m again druning the third second. It acceleration in meters per second per second(M/S2) is
*October 25, 2009 by Caitlyn*

**Math**

A car travelling at 25 km per hour and gets 5 km per litre of gasoline, how long can the car travel on 20 litres of gasoline?
*May 13, 2008 by Kristina*

**college algebra**

a bus driver wants to average at least 40 miles per hour on a 70 mile trip. if the first 35 miles takes the driver 1 hour what should be the lowest average speed for the second 35 miles?
*October 17, 2010 by matt*

**Precalculus/Trigonometry**

How can I write a polynomial equation for this problem and draw a labeled diagram? A developer wants to build homes on a rectangular plot of land 4 kilometers long and 3 kilometers wide. In this part of the city, regulations require a greenbelt of uniform width along two ...
*October 27, 2007 by Amanda*

**physics**

a bus moving at 20m/s slows at a rate of 4m/s each second. how far does it travel while braking. i found the time which was 5 seconds. A car accelerates from rest at a rate of 5 m/s/s for a period of 4.2 seconds and then moves at a constant speed for 8 seconds more. how far ...
*January 21, 2009 by Kennedy*

**math**

the distance between new york city and boston is 189.9 miles as the bird flies.how far is it in kilometers?
*September 5, 2012 by allison *

**physics**

A sailboat is sailing north on a lake parallel to the shore with a speed of 12 kilometers per hour (km/hr). If a man walking south along the shore has a speed of 4 km/hr, what is the northerly speed of the sailboat relative to the man?
*March 24, 2011 by jill*

**English**

1. I'm going to travel in Europe this summer vacation. 2. I'm going to travel to Europe this summer vacation. (What is the difference between the two setences? Are "travel in," and "travel to" interchangable?)
*December 16, 2009 by rfvv*

**Algebra **

The time, t, required to drive a certain distance varies inversely with the speed, r. If it takes 7 hours to drive the distance at 55 miles per hour, how long will it take to drive the same distance at 65 miles per hour? • about 6.25 hours • about 385.00 hours • about 5.92 ...
*May 4, 2014 by Sandra*

**Math**

6. Columbus' ships covered approximately 144 miles a day. How many miles would they have traveled in nine days? What was the average speed per hour? If there were two days when the weather did not permit movement, how many miles a day would they have to travel to make up the ...
*March 31, 2014 by Sue*

**Math Algebra 1**

suppose you ca work a total of no more than 20 hours per week at your 2 jobs. baby-sitting $5 per hour, and your cashier job pays $6 per hour. you need to earn at least $90 per week to cover your expences. question : write a system of inequalities that showas the various ...
*January 4, 2010 by Briana*

**Chemistry**

A bug is observed to travel 72 cm in 7.5 seconds. What is the bug's speed in miles per hour?
*September 11, 2012 by L*

**Math**

19. A family takes a car trip. They travel for an hour at 80 km/h and then for 2 hours at 40 km/h. Find the average speed. (Hint, Remember to consider the total distance and the total amount of time.)
*April 26, 2013 by June*

**math**

Many of the immigrants settled on farm land and they had to drive to town for supplies. One farmer drives to town at 36 miles per hour and returns at 48 miles per hour. If his total driving time is 3 ½ hours, how far is his farm from town?
*November 21, 2011 by tiffany mccormick*

**math**

Many of the immigrants settled on farm land and they had to drive to town for supplies. One farmer drives to town at 36 miles per hour and returns at 48 miles per hour. If his total driving time is 3 ½ hours, how far is his farm from town?
*November 21, 2011 by tiffany mccormick*

**MATH 112**

two planes leave an airport at the same time. Their speeds are 320 miles per hour and 380 miles per hour. If the angle between their courses is 112 degrees, how far apart are they after two hours? (The hint is using the law of cosines)
*November 20, 2012 by diego sanchez*

**maths**

Two cyclists start biking from a trail's start 3 hours apart. The second cyclist travels at 10 miles per hour and starts 3 hours after the first cyclist who is traveling at 6 miles per hour. How much time will pass before the second cyclist catches up with the first from the ...
*February 20, 2010 by thommini*

**math**

A boat travels down the river in 2.6 hours. The return trip up river takes 3.9 hours. A one way trip down or up river is a distance of 21 miles. If the boat is traveling at maximum speed, what is the boats speed measured in waters with no current? You need to use systems to ...
*December 7, 2012 by Anonymous*

**math**

A boat travels down the river in 2.8 hours. The return trip up river takes 3.8 hours. A one way trip down or up river is a distance of 24 miles. If the boat is traveling at maximum speed, what is the boats speed measured in waters with no current? You need to use systems to ...
*December 9, 2012 by Anonymous*

**Math**

Mark and Sandy are participating in a Bike-a-Thon for charity. Mark oversleeps, so Sandy gets a one hour head start and bikes at a speed of 12 miles per hour. To catch up to Sandy, Mark decides that he needs to bike at a speed of 15 miles per hour. 1. Make a chart that shows ...
*November 12, 2013 by Jerald*

**math**

last week Coughy worked 4 hours more than Achewy. she also worked twice as many hourse as Pokey. altogether, they earned $252. if couphy earns $6.50 per hour, Achewy earns $9 per hour, and Pokey earns $5 per hour, find the number of hours that each worked.
*June 6, 2012 by Josh*

**Physics**

1. A car is traveling at 85km/h, find the following: A) Its speed in m/s u = 85km/h = 85km/h * 1000m/km/ 60s/min * 60min/m/h = 85000/ 3600 = 23.61 ANS = 23.61m/s B) How many meters will it travel in 8 seconds = 23.61m/s * 8s ANS = 188.88m C) How long (in seconds) will it take ...
*June 5, 2013 by DANNY*

**Science**

If you are traveling 93,000 miles per second, and you needed to travel 620 trillion miles, how long would it take you?
*November 19, 2013 by Harold*

**Math**

The ocean covers about 71% of the Earth's surface. If the total surface area of the Earth is about 510 million square kilometers, how many square kilometers are covered by the ocean? 362.10
*November 30, 2010 by Hayley*

**math**

andys average driving speed for a 4-hour trip was 45 miles per hour. during the first 3 hours he drove 40 miles per hour. what was his average speed for the last hour of his trip? The trip length was 4 x 45 = 180 miles. He went 3x40 = 120 the first three hours. How many miles ...
*April 28, 2007 by anonymous*

**physics**

Background knowledge: For cars traveling along dufferin,the speed is 60km/h. The distance to cross the intersection is 34m. Assume the length of a typical car is 4.5m. For safety reasons, the Ministry of Transportation recommends that vehicles stop with an acceleration no ...
*July 12, 2014 by saarah*

**Algebra**

Shoreline Travel operates a 3hr paddle boat cruise on the Missouri River. If the speed of the boat in still water is 12 mph, how far upriver can the pilot travel against a 5 mph current before it is time to turn around?
*May 24, 2014 by Kgk*

**Math**

write a function. f(x), that represents the cost of renting a car for x days with a total of 80 kilometers if there is a fixed charge of $17 per day and a charge of $0.35 per kilometer.
*October 20, 2011 by Cortney*

**Functions**

write a function. f(x), that represents the cost of renting a car for x days with a total of 80 kilometers if there is a fixed charge of $17 per day and a charge of $0.35 per kilometer.
*October 20, 2011 by Cortney*

**physics**

If the pelican was traveling at the same speed but was only 2.3 m above the water, how far would the ﬁsh travel horizontally before hitting the water below? Answer in units of m
*October 14, 2012 by Anonymous*

**physics**

If the pelican was traveling at the same speed but was only 2.3 m above the water, how far would the ﬁsh travel horizontally before hitting the water below? Answer in units of m
*October 15, 2012 by Anonymous*

**Math**

Bob's frog can travel 6 inches per jump, Kim's frog can travel 9 inches, and Jack's frog can travel 13 inches. If the three frogs start off at point 0 inches, how many inches will it be to the next point that all three frogs touch?
*February 27, 2010 by Tasha*

**Algebra II**

The problem states: Saturn is approximately 1.4x 10 to the 9th power kilometers from the Sun. If light travels at approx. 3.0 x 10 to the 5th power kilometers per second, how long does it take light from the Sun to reach Saturn? Express your answer in scientific notation. The ...
*February 3, 2008 by Lucy*

**math**

a vehicle uses 1 tablespoon of gasoline to drive 125 yard how many miles can the vehicle travel per gallon? a model airplane flies 18 feet in 2 seconds what is the planes speed per miles an hour? how do i do these
*October 21, 2010 by courtney*

**Mathematics**

Q1.A man earn $1200 and spends $450 per month.Find ratio of (a)His income to his expenditure and (b)His savings to his income Q2.An open water tank with length 20 cm and width 15 cm holds 4.8 liters of water.calculate the height of the water level tank and the total surface ...
*May 14, 2011 by Envy Green*

**math**

Anthony plans to ride 175 km on his bike and Samantha plans to ride 250 km. They both plan to complete their journeys in a whole number of days. a) How many kilometers could each person travel if they both ride the same number of kilmeters each day? b) Howmany days will each ...
*September 9, 2009 by Van*

**Algebra**

A furnace repair service charged a customer $80 for parts and $65 per hour worked. The bill totaled $177.50. About how long did the repair technician work on the furnance? A. 0.5 hour B. 1.5 hours C. 2 hours D. 47.1 hours
*May 8, 2014 by Anonymous*

**algebra**

the formula d=(square root)12,800+h^2 gives the distance d in kilometers to the horizon from a satellite h kilometers above Earth.Find the distance to the horizon to the horizon from a satellite 4200 km above Earth. Round to the nearest kilometer. PLEASE HELP ME
*December 6, 2012 by alexis*

**algebra**

You can work a total of no more than 34 hours per week at your two jobs. House cleaning pays $8 per hour and your sales job pays $6 per hour. You need to earn at least $245 per week to cover your expenses. Write a system of inequalities that shows the various numbers of hours ...
*February 4, 2010 by ben*

**8th grade math**

One of your friends is heading north for the Christmas holiday and the other friend is heading south. If when they start, they are 1029 miles apart and one car is traveling at 53 miles per hour, and the other 45 miles per hour, how many hours before the two cars pass each other?
*December 14, 2011 by stella*

**Quantitative methods**

Hostis sent a car company charges 45 dollars per day plus 40 cents per mile for a compact car, and gasoline costs 1.19 dollars per gallon. If the car gets 25 miles per gallon of gasoline, how many miles can the driver travel each day on a budget of 100 dollars
*March 3, 2012 by Anonymous*

**Physics**

If a tern travels 3.20 x 10^4 km south in 122 days, what is its average velocity in kilometers per day?
*September 14, 2009 by NoNo100*

**Physics**

If a tern travels 3.20 x 10^4 km south in 122 days, what is its average velocity in kilometers per day?
*September 14, 2009 by NoNo100*

**math**

The ocean covers about 71% of the Earth’s surface. If the total surface area of the Earth is about 510 million square kilometers, how many square kilometers are covered by the ocean?
*March 28, 2013 by Anonymous*

**math/algebra**

Can I get help in solving these problems using the linear system of elimination. 4x - 5y =22 x + 2y = -1 2x - 3y = 16 3x + 4y = 7 Word Problem: During the summer, you want to earn at least $150 per week. You earn $10 per hour working for a farmer and you earn $5 per hour ...
*March 12, 2009 by JAY10*

**maths**

A party of bush walkers have an average speed of 50km/minute and walk for 4 hours on a bearing of 231°T. they then walk for 6(1)/(3) hours on a bearing of 117°T. Find a.How far are they from bas e camp? b. The bearing they must travel along to get to base camp
*March 15, 2011 by Tammy*

**Trig**

Nathan and Julia are walking along lines that form a 38 degree angle. If Nathan walks at 3.6 miles per hour and Julia walks at 4.1 miles per hour, how far apart will they be after 2 hours?
*May 10, 2010 by MEGGG!!!*

**precalculus**

an airplane flying at 550 miles per hour has a bearing of N 52(DEGREES)E. After flying 1.5 hours, how far north and how far east has the plane traveled from its point of departure?
*March 11, 2010 by sara*

**Physics**

use the face that the speed of light in a vacuum is about 3.00 x10^8 m/s to determine how many kilometers a pulse from a laser beam travels in exactly eighteen hours
*September 8, 2011 by John*

**Physics**

On a dry road, a car with good tires may be able to brake with a constant deceleration of 4.17 m/s2. (a) How long does such a car, initially traveling at 22.4 m/s, take to stop? (b) How far does it travel in this time?
*March 9, 2011 by john*

**physics**

On a dry road, a car with good tires may be able to brake with a constant deceleration of 3.31 m/s2. (a) How long does such a car, initially traveling at 28.2 m/s, take to stop? (b) How far does it travel in this time?
*March 10, 2011 by john*

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