Friday

April 18, 2014

April 18, 2014

Number of results: 13,293

**AP Calculus BC**

A cylindrical tank is constructed to have a diameter of 5 meters and a height of 20 meters. Find the error in the volume if: (a) the diameter is exact but the height is 20.1 meters (b) the height is exact, but the diameter is 5.1 meters.
*Wednesday, April 14, 2010 at 11:05pm by J'vonte*

**trigonometry**

I guess we are to do miles per hour ? v = omega * r omega = 2 pi /24 hr r = 6.4*10^3 km (1 mile/1.6 km) = 4,000 miles so v = 4000 miles (2 pi/ 24 hr) =3333 miles/ hour
*Wednesday, January 7, 2009 at 8:02pm by Damon*

**Math**

Did I do this right? A cage with a volume of 27 cubic meters, if the sides are in whole meters only and the width is 3 meters, what are the possible dimensions for the length and height? 27=3X3X3 or 27=9X1X3 Yes. Your answers are correct.
*Thursday, May 31, 2007 at 12:40pm by Sam*

**Physics**

A car accelerates uniformly (a = constant) from 34 meters/second up to 40 meters/second in 4.0 seconds. What is the acceleration of the car in meters/second2?
*Sunday, September 18, 2011 at 9:25pm by Kristina*

**College Algebra**

A jet flies from Atlanta to Dubuque a distance of 900 miles. After traveling the same amount of time on the return flight,the pilot mentioned they still had 150 miles to go. The airspeed of the plane was 300 miles per hour. How fast was the wind blowing?
*Tuesday, September 25, 2012 at 10:25pm by Rachel*

**physics**

A compartment measures 3 meters by 5 meters and is 2.8 meters high. A fire raises the temperature from 20 degrees C to 1000 C. If the starting temperature assuming the compartment remains closed?
*Friday, October 28, 2011 at 5:00pm by Deborah*

**geometry!**

The swimming pool that sunny goes to has dimensions 20 meters long, 8 meters wide and 3 meters deep. What is the volume of water (in m^3) that the swimming pool contains?
*Monday, March 11, 2013 at 4:52am by Anonymous...anyone please help!,*

**math**

The swimming pool that Calvin goes to has dimensions 20 meters long, 8 meters wide and 3 meters deep. What is the volume of water (in m3) that the swimming pool contains?
*Wednesday, March 13, 2013 at 7:17am by ayan*

**Math**

Simply using positive exponents no calculator answers 256^3/4 25 kilograms = ------ miles(1mile=1609 meters) 45kg=-----lbs(1lb=453.6g) One angstrom is ------ orders og magnitude ------* than 10km 10^5angstro
*Thursday, October 23, 2008 at 3:23pm by Odella*

**math**

two airplanes left the same airport traveling in opposite direction. if one airplane averages 400 miles per hour and the other airplane averages 250 miles per hour, in how many hours will the distance between the two planes be 1625 miles? Does it help to point out that if they...
*Saturday, April 28, 2007 at 12:40am by anonymous*

**algebra**

a diver dove 94 meters and rose 2 meters every minute for 8 minutes. Where is the diver in relation to the surface? The answer to me would be 94 - 16 = 78 meters. Why is this wrong?
*Saturday, April 23, 2011 at 6:04pm by aria*

**math**

a rectangular field measures 20 meters by y meters is surrounded by grass patch of width 2 meters . What is the area of the grass patch ? Leave your answer in the simplest form in terms of y .
*Saturday, April 21, 2012 at 12:30am by melissa*

**MAths algebra**

A rectangular plot measures 16 meters by 34 meters ,find the distance from one corner of plot to the corner diagnolly opposite Answer is 38 meters
*Tuesday, April 2, 2013 at 2:58am by Firdous*

**Physics**

A bus started out going 20 miles per hour on the highway. One hour later it drove 40 miles per hour on the freeway. How long did it take to go 140 miles?
*Thursday, March 8, 2012 at 8:23pm by Anonymous*

**algebra**

Rachel allows herself one hour to reach a sales appointment 50 miles away. after she has driven 30 miles, she realizes that she must increase her speed by 15mph in order to arrive on time. what was her speed for the first 30 miles? The time to drive the first 30 miles is T1 = ...
*Tuesday, February 17, 2009 at 6:49am by tchrwill*

**algebra (21)**

A polot flies 630 miles wit a tail wind of 35 miles per hour. Against the wind, he flies only 455 miles in the same amount of time. Find the rate of the plane in still air.
*Friday, November 9, 2007 at 7:36pm by Anita*

**math....please help!**

rachel allows herself 1 hour to reach a sales appt 50 miles away. after she has driven 30 miles, she realizes that she must increase her speed by 15mph in order to get there on time. what was her speed for the first 30 miles?
*Tuesday, February 17, 2009 at 11:16pm by john*

**statistics**

Distance travelled in a week by sales staff employed by nationwide security firm is approximately normally distributed with a mean of miles and standard deviation of 48 miles. Estimate the percentage of staff who in a week travel less than 80 miles
*Monday, May 3, 2010 at 1:50pm by Anonymous*

**math**

During each shift as a bus driver, Haley drives between 80 and 140 miles. She started the month with 4,500 miles driven. What is a reasonable estimate for the number of total miles she has driven the bus, after 20 more shifts?
*Monday, November 21, 2011 at 10:03pm by victor*

**math**

Total distance travelled is 32 miles. The south component of the displacement is is 32 cos 45 = 22.63 miles. On a map, that is how much the southern coordinate changes. There is an eastern displacement of the same amount, 32 sin 45 = 22.63 miles. The hypotenuse, which is the ...
*Thursday, March 18, 2010 at 10:48am by drwls*

**Earth Science**

To convert meters into cubic meters, try some of the following links: http://search.yahoo.com/search?fr=mcafee&p=how+to+con+vert+meters+into+cubic+meters Sra
*Sunday, April 24, 2011 at 10:23pm by SraJMcGin*

**math**

A rectangular lot has an area of 216.795 square meters and a width of 9.7 meters. Nick calculated the length of the lot to be 2.235 meters. Without solving, is Nick's calculation correct?
*Wednesday, February 8, 2012 at 10:46pm by john *

**Geometry**

For a given box, the height measures 4 meters. If the length of the rectangular base is 2 meters greater than the width of the base and the lateral area L is 96 square meters, find the dimensions of the box.
*Wednesday, May 30, 2012 at 1:44pm by Jordie *

**math**

A swimming pool is 25 meters x 15 meters. A concrete walk 2 meters is built around it. What is the area of a concrete walk?
*Thursday, January 12, 2012 at 7:53pm by liza*

**Algebra**

A trapezoid when its height is h and the lengths of its bases are a and b. What is the area of a trapezoid when h = 6 meters, a = 5 meters, and b = 12 meters? Formula A = 1/2h(a+b) gives the area.
*Tuesday, February 12, 2013 at 12:59am by Jamie*

**business statistics**

The average length of a flight by regional airlines in the United States has been reported as 299 miles. If a simple random sample of 30 flights by regional airlines were to have ȭ = 413/6 miles and s= 42.8 miles, would this tend to cast doubt on the reported average of ...
*Thursday, July 30, 2009 at 3:15pm by Candy*

**chemistry**

calculate the rms speeds of He at 10, 100, and 1000 K in meters per second and in miles per hour. What values would be otained if the pressure was 10^-10 bar
*Sunday, January 23, 2011 at 3:24pm by noel*

**Statstics**

Cities A, B, C and D are equidistant. That is, B is d miles from A, C is d miles from B, and D is d miles from C. Suppose you travel 55 mph from A to B, 40 mph from B to C, and 50 Mph from C to D. What single, constant speed could you have traveled from A to B to C to D that ...
*Tuesday, May 3, 2011 at 3:12pm by Robo*

**Math**

I have another question-Mr. Burns ran 14 miles last week. He only ran on Monday, Tuesday, and Wednesday. If Mr. Burns ran 3 miles on Tuesday and 5 miles on Wednesday, then how many miles did he run on Monday? Could you explain how to get the answer please.
*Thursday, September 18, 2008 at 7:16pm by Mattie*

**Algebra**

Volume of a container? A cubic shipping container had a volume of a^3 cubic meters. The height was decreased by a whole number of meters and the width was increased by a whole number of meters so that the volume of the container is now a^3+2a^2 3a cubic meters. By how many ...
*Thursday, August 5, 2010 at 10:31am by michelle*

**math**

mary jogged 5 7/10 miles on monday and 4 1/8 miles on tuesday. Raul jogged 6 1/2 miles on monday and 3 4/5 miles on tuesday. How much farther did raul jog on monday than tuesday.
*Thursday, March 28, 2013 at 8:41pm by Chris*

**physics**

In a movie a character jumps off a balcony at an angel of 25 degree 10 meters above the ground and land in a window that is 5 meters away and 9 meters above the ground. What is the intial velocity?
*Thursday, October 6, 2011 at 11:46pm by jeff*

**Geometry**

A landowner digs a 15 meter deep well with a diameter of 2.8 meters. The landowner spreads the dirt dug out of the holds to form a flat platform 31.5 meters by 6 meters. What is the length of the platform?
*Wednesday, May 1, 2013 at 9:20pm by Dee*

**algebra**

rachel allows herself one hour to reach a sales appointment 50 miles away. after she has driven 30 miles, she realizes that she must increase her speed by 15mph in order to arrive on time. what was her speed for the first 30 miles?
*Tuesday, February 17, 2009 at 6:49am by john*

**Math**

1.75 inches --- 50 miles 1 inch ----50/1.75 miles 7 inches --- 7(50/1.75) miles = 200 miles or ... just use a ratio x/50 = 7/1.75 times 50 x = 50(7)/1.75 = 200 (notice both methods end up with the same arithmetic calculations)
*Tuesday, October 23, 2012 at 2:55am by Reiny*

**math**

(a) is 2.95 (first 1/4 mile) + 1.5 miles x2.60 ($/mile) = $6.85 (Same charge as as 1 3/4 miles) (b) is correct (c) After the first quarter mile, you have $64.25 left to travel at a rate of $2.60 per mile. That will take you an additional 24.5 miles, for a total of 24.75 miles...
*Sunday, January 9, 2011 at 11:22pm by drwls*

**Algebra 1 high school **

In deep water, the speed s (in meters per second) of a series of waves and the wavelength L (in meters) of the waves are related by the equation 2(pi)s^2=9.8L. a. Find the speed the the nearest hundredth of a meter per second of a series of waves with the following wavelengths...
*Tuesday, August 27, 2013 at 3:07pm by Help now*

**Basic Math**

If you start at the origin and walk 100 meters right, you go to x = +100 meters If you start at the origin and walk 100 meters left, you go to x = -100 meters. In either case you walk 100 meters.
*Wednesday, October 10, 2012 at 5:23am by Damon*

**Math**

Steve's boat will go 14 miles per hour in still water. If he can go 13 miles downstream in the same amount of time as it takes to go 10 miles upstream, then what is the speed of the current? (Please round your answer to one decimal place.)
*Tuesday, July 24, 2012 at 12:35am by Josh*

**Algebra 1**

A ball is thrown upward with an initial velocity of 35 meters per second from a cliff that is 80 meters high. The height of the ball is given by the quadratic equation h = -49t^2 + 35t + 140 where h is in meters and t is the time in seconds since the ball was thrown. Find the ...
*Thursday, March 7, 2013 at 7:13pm by Sherry*

**math**

The Harveys keep their goat on a 3-meter chain connected to a metal hook on the corner of a shed that is rectangular in shape (5-meters by 4-meters). To the nearest tenth, what area of grass in square meters can the goat reach to eat? (use 3.14 for pi)
*Friday, April 3, 2009 at 8:13pm by Pranav*

**MATHS!!!**

Calvin was making a trip to the University of Chicago. When he drove down, he took Lakeshore Drive, and averaged 35 miles per hour. On his way back, he took the I-94 highway, and averaged 50 miles per hour. Given that the return journey was 4 miles longer and took 6 minutes ...
*Tuesday, April 23, 2013 at 5:02am by OIan*

**math**

Sean's older brother is 16 years old. He runs between 15 and 25 miles each week. The sum of the digits of the total number of miles that he ran last week is eight less than his age. How many miles did Sean run last week?
*Monday, April 22, 2013 at 8:00pm by Gaby*

**Math**

Kyle is training for a bike race. He rides 5 miles one day, 10 miles the next day, and 15 miles the third day. If Kyle repeats this schedule, what is the total distance he will have ridden after 5 days?
*Thursday, January 16, 2014 at 8:49pm by Chris*

**math**

Extra Credit opportunity: A driver is headed north on a long, straight highway and sees this sign: Nearville 150 miles Farville 160 miles Then, surprisingly, an hour later she sees this apparently inconsistent sign on the same highway: Nearville 100 miles Farville 109 miles ...
*Friday, March 2, 2012 at 7:50am by Anonymous*

**science**

About a month ago I asked you a question and it was, A quantity of gas has a volume of 0.20 cubic meter and an absolute temperature of 333 degrees Kelvin. When the temperature of the gas is raised to 533 degrees Kelvin, what is the new volume of the gas? You told me how to ...
*Wednesday, August 17, 2005 at 4:53pm by Mirayah Robinson*

**matn **

In a roller blade race grant is 5 meters ahead of cathy. mike is 7 meters behind cathy. joey is 4 meters ahead of Mike. How many meters is grant ahead?
*Wednesday, October 20, 2010 at 1:44pm by I. Ranson*

**aLgEbrA variable & expression**

i need to define a variable and write an algebraic expression for each phraase. 1) two points few than 3 times the number of points scored yesterday. i wrote: 3p-2 = 2) one metere more than 6 times your height in meters i wrote: 1 + 6h 3) seven pages fewer than half the number...
*Thursday, October 20, 2011 at 8:16pm by marko*

**math**

If you have gone 5/8 miles, and you still have 7/8 miles to go, the total distance you have to go is (5/8 + 7/8) miles notice you already have a common denominator, so it should be easy to finish.
*Monday, January 4, 2010 at 7:55pm by Reiny*

**math**

You ran 1.5 miles befor you decide you were running in the wrong direction.you truned around and ran back were you started .then you ran 2.75 miles in the other direction how many miles did you ran in all?
*Monday, March 7, 2011 at 6:50pm by cindy*

**Chemistry**

123 km/day x (7 days/week) x (0.621 mi/km) = ? miles. ?miles x (1 gal/28 miles) = ?gallons. ? gallons x (3.785 L/gal) = ? L 1.10/L x ? L = ?euros
*Sunday, September 2, 2012 at 9:16pm by DrBob222*

**pre calc**

you are 7 miles N & 4 miles W of the cabin how do you get back to the cabin? how many miles away is the cabin?
*Thursday, December 8, 2011 at 10:03pm by jim*

**math**

Rachel likes running she ran over 30 miles five days this week. she ran 8 miles on Monday. How many miles did she run on average during the other four days of the week?
*Monday, March 16, 2009 at 2:16pm by danny*

**math**

Or, since the boys live 42 miles apart, and they each ride at 7mph, they ride 21 miles each, in 3 hours. The pigeon, flying at 21 mph for those 3 hours, covers 63 miles.
*Tuesday, June 26, 2012 at 5:58pm by Steve*

**math**

I drove 843 miles to Florida. On the first day, I drove 483 miles. On the second day, how long did it take to reach florida if the average speed is 60 miles per hour?
*Monday, October 29, 2012 at 9:20pm by Anonymous*

**7grade math**

Always do unit problems so the units you do not want cancel and you are left with what you want in this case cancel inches so you end up with miles 6.75 inches ( 25 miles/ .75 inch) = 225 miles
*Sunday, February 16, 2014 at 2:45pm by Damon*

**math**

On a sunny afternoon. The stratosphere tower casts a shadow that is 140 meters long. At the same a nearby flagpole that is 10 meters tall cast a shadow that is 4 meters long . WrirÃƒÂ© silve the problem
*Wednesday, December 12, 2012 at 4:40pm by ivan*

**math**

If a man drove 3.5 miles to a gas station and on the way home drove 2 times that +.7 miles,how many miles did he drive?? 3.5 + 2 times 3.5 + .7 = what Do the math. 17.5 omg ur so smart...
*Thursday, June 7, 2007 at 1:40pm by Caitlyn*

**Math**

Jesse jogs at a rate of 6 miles per hour. The next time she jogs, she increases her speed to 7 miles per hour. How long will it take her to jog 6 miles?
*Thursday, May 31, 2012 at 12:37am by Patch*

**math**

So the fish is moving 7 miles but falls back 5 miles each full day. 7-5= 2 25/2= 12.5 It would take the fish 12.5 days to move 25 miles.
*Tuesday, October 29, 2013 at 8:25am by Nathan*

**Algebra**

let the distance traveled when the second catches up be x miles time for the freight train to go x miles = x/35 time for the faster train to go x miles = x/60 x/35 - x/60 = 1 times 420 , the LCD 12x - 7x = 420 5x = 420 x = 84 miles check: time for freight to go 84 miles = 84/...
*Sunday, April 28, 2013 at 12:14pm by Reiny*

**math**

A traveler travels on a highway 80 miles at 55 miles per hour, he then travels back on the same highway at 45 miles per hour. What was his average rate of speed. (Hint: it's not 50 miles per hour) If it's not 50, i'm so confussed!!! Please help!!! (and please show me how you ...
*Wednesday, December 2, 2009 at 10:21pm by Ashley*

**math**

Hiroshi jogs less than 4 miles each day. After n days,he has jogged 16 miles. Which inequality can be used to find the number of days it might have taken Hiroshi to jog 16 miles.
*Sunday, February 26, 2012 at 4:56pm by lisa*

**Math**

by 11 pm, ship1 has gone 17*12 = 204 miles east Also, ship2 has gone 180 miles north the final separation is thus d^2 = 204^2 + 180^2 d = 272.1 miles
*Monday, September 3, 2012 at 1:06pm by Steve*

**math**

2 trains leave the station at 325 one going east at 66 miles per hour the second going west at 82 miles per hour they are 111 miles apart what time is it
*Tuesday, March 25, 2014 at 12:17am by nick*

**algebra**

For the path-crossing point, you don't need velocities. Let Y be miles north and X = miles east. Let (0,0) be the coordinates of the cruise ship initially. Y = 350 - X (for tanker) Y = (5/2) X (for cruise ship) The cross when 0 = 350 - (7/2)X X = 100 miles Y = 250 miles a) The...
*Monday, November 30, 2009 at 2:11am by drwls*

**college algebra word problem**

rachel allows herself 1 hour to reach a sales appt 50 miles away. after she has driven 30 miles, she realizes that she must increase her speed by 15mph in order to get there on time. what was her speed for the first 30 miles?
*Tuesday, February 17, 2009 at 6:56am by john*

**college algebra**

Solve the problem. A man rode a bicycle for 12 miles and then hiked an additional 8 miles. The total time for the trip was 5 hours. If his rate when he was riding a bicycle was 10 miles per hour faster than his rate walking, what was each rate?
*Wednesday, February 25, 2009 at 11:09am by megan*

**Physics**

A bus started out going 20 miles per hour on the highway. One hour later it drove 40 miles per hour on the freeway. How long did it take to go 140 miles? Is the correct answer 3.5 minutes.
*Sunday, March 11, 2012 at 10:45pm by Anonymous*

**Physics**

A bus started out going 20 miles per hour on the highway. One hour later it drove 40 miles per hour on the freeway. How long did it take to go 140 miles? Is the correct answer 3.5 minutes.
*Sunday, March 11, 2012 at 10:45pm by Anonymous*

**Physics**

A bus started out going 20 miles per hour on the highway. One hour later it drove 40 miles per hour on the freeway. How long did it take to go 140 miles? Is the correct answer 3.5 minutes.
*Sunday, March 11, 2012 at 10:45pm by Anonymous*

**algebra 1**

A plane trip scheduled between Tampa and St. Petersburg was scheduled for 22 minutes. The distance is about 17 miles. How fast would the plane be traveling in miles per hour? 22/60=.367 hrs so 17 miles in .367 hr = x miles in one hr 17/.367=x/1 x=46.32 mph
*Wednesday, February 14, 2007 at 9:33pm by H.C.*

**calculus**

A recatangle has constant area of 200 square meters and its lenght L is increasing at the rate of 4 meters per second a) find the width W at the instant that the width is decreasing at the rate of .5 meters per second b) at what rate is the diagonal d of the rectangle changing...
*Thursday, November 10, 2011 at 3:33pm by Demetria*

**Math**

Alfredo walked 24 miles in the walk-a-thon. His friend Terence walked 1/3 as many miles. How many miles did Terence walk? I really don't understand this problem could someone help me.
*Wednesday, April 13, 2011 at 3:40pm by Lisa*

**fractions**

Annie walked her dog 2 1/4 miles from her house to the dog park and 3/7/8 miles around the park.Then she walked the same distance home.How many miles did she walk in all?
*Thursday, March 14, 2013 at 5:09pm by ttuuffyy*

**Maths**

Jacob buys a car with 7,000 miles on it. He drives an average of 220 miles a week. Write an equation to represent the number of miles, m, on the car after any number of weeks, w. Explain each part of the equation. Thanks so much!!! :)
*Saturday, November 16, 2013 at 10:33pm by Becky*

**math**

if robbie runs 10 miles per hour, how many minutes would it take to run 2 miles? I don't know how to figure this out? Can someone give me a hint? is it 12 minutes? 60 min/ 10 miles = x min / 2
*Tuesday, December 10, 2013 at 9:40pm by cici*

**gEoMeTrY iNsCrIbEd AnGlEs MuLtIpLe ChOiCe QuEsTiOn**

A satellite, B, is 17,000 miles from the horizon of Earth. Earth’s radius is about 4,000 miles. Find the approximate distance the satellite is from the Earth’s surface. {The picture is a circle with point O in the center, point C is on the top center edge of the circle, point ...
*Friday, May 11, 2012 at 9:38am by aYaMe ;)*

**Algebra - Dividing Radicals**

A landowner wishes to construct a fence around a small section of her property. The fence is rectangular and is (3√5)/√7 meters wide and (2√3)/√5 meters long. What is the exact perimeter of the fence? (Recall that the perimeter is the sum of each ...
*Tuesday, February 11, 2014 at 6:32pm by Brady*

**Physics**

d = r * t = 55mi/hr * 1.2hrs = 66 miles driven. 122 - 66 = 56 miles remaining, He has 48 min(0.8hrs) to drive the remaining 56 miles, d = r * t, 56 = r * 0.8, r = 56/0.8 = 70 mi/hr during the last 56 miles. b. v = D/T = 122mi/2hrs = 61 mi/hrs
*Sunday, September 12, 2010 at 9:15pm by Henry*

**algabra**

I take a trip in my car. I want to go 960 miles in one day. The time t, in hours, that it takes to travel 960 miles is given. I will be going 70 or 75 miles an hour so the speed is r. How long will it take me to get to where I am going?
*Tuesday, February 1, 2011 at 6:13pm by kathy*

**Math Statistics**

The life span of three randomly selected tires are 34,700 miles, 43,000 miles, 39,000 miles. Using the empirical rule, find the percentile that corresponds to each life span.
*Sunday, February 17, 2013 at 4:26pm by Quala*

**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?
*Wednesday, October 9, 2013 at 11:44am by Nahar*

**math**

Width = W meters. Length = (W+12) meters. 2W + 2(W+12) = 104 meters. 2W + 2W + 24 = 104. 4W = 104 - 24 = 80 W = 20 meters. W+12 = 20 + 12 = 32 meters.
*Monday, October 1, 2012 at 2:37am by Henry*

**6th grade algebra**

a) Kendric makes 4 out of every 5 baskets he throws. What is the probability he will make his next shot as a percentage? MULTIPLE CHOICE b) If Marcia walks 4 1/4 miles before work and 5 6/8 miles after work. How many miles did she walk for the day? A 9 7/12 B 1 7/12 C 9 D 10
*Sunday, December 27, 2009 at 6:40pm by Taylor*

**astronomy**

the diameter of earth is 7928 miles. what is the diameter in inches? in yards? If the diameter of earth is expressed in 12,756km what is the diameter in meters? in centimeter? give yoiur answers in scientific notation
*Saturday, May 22, 2010 at 9:43pm by maria*

**Geometry**

find the radius of a sphere withh the given property. A.The number of square meters of a surface area equals the number of cubic meters of volume. B. The ratio of surface area in square meters to volume in cubic meters is 1:5.
*Sunday, September 29, 2013 at 11:17pm by George*

**Algebra Word Problems**

when going more than 38 miles per hour the gas mileage of a certain car fits the model y=43.81 - 3.95x where x is the speed of the car in miles per hor and y is the miles per gallon of gas. Based on model what speed will the car average 15 miles per gallon
*Tuesday, December 15, 2009 at 1:29pm by mike*

**math**

a heavy freight train made a trip of 360 miles, running part of the distance at 54 miles an hour and the rest at 48 miles an hour.if the entire trip took 7 hours,find the distance traveled at each rate.
*Wednesday, February 3, 2010 at 12:08am by chris*

**trig **

A freighter leaves on a course of 120 degrees and travels 515 miles. The ship then turns and goes due east 200 miles. What is the bearing and distance from the port to the ship? I calculated 142 miles for distance but couldn't get bearing. Any help is appreciated.
*Monday, April 26, 2010 at 1:49pm by stacey graham*

**math**

the miles of reception would be the length of the chord as the highway cuts through the circle of reception. I see a right-angled triangle, with a hypotenuse of 6.1 (radius of the circle) , a side of 3 (highway is 3 miles from station) and a third side of x x^2 + 3^2 = 6.1^2 x...
*Tuesday, May 15, 2012 at 9:46pm by Reiny*

**Math**

Sam lives 5 miles from school, Joe lives 2 miles from schoo, and Andy lives 1 mile from school. What is the range of the miles the boys live from school?
*Thursday, September 1, 2011 at 12:07am by Joei Fierro*

**math**

One of the world's fastest roller coasters is located in a theme park in Valencia, California. Riders go from 0 to 100 miles per hour in 7 seconds. Find the acceleration of the roller coaster during this time interval in miles per second squared. Math - Reiny, Monday, March 8...
*Monday, September 27, 2010 at 9:46pm by erin*

**Math Word Problem**

Steve's boat will go 14 miles per hour in still water. If he can go 13 miles downstream in the same amount of time as it takes to go 10 miles upstream, then what is the speed of the current? (Please round your answer to one decimal place.)
*Tuesday, July 24, 2012 at 11:14pm by Lisa L*

**Math (College Pre-Cal)**

The exact conversion between the English measurement system and the metric system is given by the equation 1 inch= 2.54 cm. Let f(x) be the number of miles in x meters. Find a formula for f(x). Give an exact answer.
*Sunday, September 29, 2013 at 11:06pm by anonymous*

**Pre-Calculus**

The grade of an incline is its vertical rise in some units per every 100 horizontal run in the same units. so rise/run = tan slope = .12 so slope = tan^-1 .12 = 6.8 degrees height in miles = .12 run in miles ( the question is ambiguous. I am assuming the 4 miles is on the map...
*Thursday, February 5, 2009 at 11:24pm by Damon*

**math**

x times (x+2)=35 meters x squared plus 2x = 35 meters (x+7)(x+5)-35=0 x+7=0 x=7 meters the length x+5=0 x=5 the width I believe this is correct But math is not my strongest subject. History and Geography are. :)
*Wednesday, June 15, 2011 at 2:57pm by Raymond*

**Algebra**

1. Create the indicated algebraic expression. Use descriptive variables. The length of a rectangular lawn is 6 ft more than three times the width of the lawn. Express the length of the lawn in terms of the width. A. 3+w+6 B. 3(w+6) C. 6w+3 D. 3w+6 For 1 I thought it was B? 2. ...
*Wednesday, January 16, 2013 at 10:32am by Krissy *

**statistics**

16. Based on tests of the Chevrolet Cobalt, engineers have found that the miles per gallon in highway driving are normally distributed, with a mean of 32 miles per gallon and a standard deviation 3.5 miles per gallon
*Saturday, March 10, 2012 at 10:14pm by tone*

**Chemistry**

Start with what you must convert. That is 15 km. Than multiply by the factors to convert to another unit. For example, you don't have the conversion in your post from km to meters or from meters to cm. There are 1000 m in a km and 100 cm in a meter. Here is how you do them. 15...
*Sunday, December 4, 2011 at 1:26pm by DrBob222*

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