Saturday

January 21, 2017
Number of results: 712

**physics**

A highway is made of concrete slabs that are 14.0 m long at 20° C. (a) If the temperature range at the location of the highway is from -17.8° C to +40.8° C, what size expansion gap should be left (at 20° C) to prevent buckling of the highway? (b) How large are the gaps at...

*April 27, 2014 by Steve*

**word problem**

Millwood city is constructing a new highway through town. The construction crew can complete 5 3/6 miles of road each month. The total new highway will be 54 miles long. Will the highway be finished in 8 months? I know that 36 2/5 miles of highway can be completed in 6 1/2 ...

*February 15, 2013 by Jared*

**calculus**

a road that runs perpendicular to a highway leads to a farmhouse located one mile off the highway an automobile travels down the highway past the road leading to the farmhouse at a speed of 60 mph how fast is the distance between the farmhouse an automobile increasing when the...

*March 1, 2013 by diego*

**Math**

Suppose that the amount of time it takes to build a highway varies directly with the length of the highway and inversely with the number of workers. Suppose also that it takes 100 workers 6 weeks to build 4 miles of highway. How long will it take 160 workers to build 16 miles ...

*March 11, 2016 by Anonymous*

**physics**

A salesperson leaves the office and drives 26 km north along a straight highway. A turn is made onto a highway that leads in a direction of 60 degrees. The driver continues on the highway for a distance of 62 km and then stops. What is the total displacement of the salesperson...

*October 21, 2015 by Sooners41*

**PHYSICS**

A salesperson leaves the office and drives 26 km north along a straight highway. A turn is made onto a highway that leads in a direction of 60 degrees. The driver continues on the highway for a distance of 62 km and then stops. What is the total displacement of the salesperson...

*October 21, 2015 by Madison*

**math**

A rancher with 7000 yds of fencing wants to enclose a rectangular field that borders a straight highway and then wants to devide it into two plots with a fence parellel to the highway. If no fence is needed along the highway, what is the largest area that the farmer can enclose?

*September 3, 2012 by nick*

**algebra**

One paving machine can surface 1 km of highway in 6 hours. Another can surface 1 km of highway in 8 hours. how long would it take to surface 1 km of highway with the two machines working together?

*May 20, 2010 by Steven*

**MATH**

A truck enters a highway driving 60mph. A car enter the highway at the same place 14 minutes later and drives 66mph in the dame direction. From the time the car enters the highway, how long will it take the car to pass th truck?

*March 9, 2011 by MARIAH*

**12th grade (Physics)**

A highway is to be built between two towns, one of which lies 44.0 km south and 74.0 km west of the other. What is the shortest length of highway that can be built between the two towns, and at what angle would this highway be directed?

*October 21, 2009 by Lynnie*

**physics**

A highway is to be built between two towns, one of which lies 24.0 km south and 76.0 km west of the other. What is the shortest length of highway that can be built between the two towns, and at what angle would this highway be directed?

*October 28, 2010 by Anonymous*

**math**

the new highway will be a total of 54 miles long . will the highway be finish in 8 months

*January 28, 2014 by tavion*

**Math**

The new highway will be a total of 54 mils long. Will the highway be finished in 8 months?

*February 27, 2014 by Dawn*

**math**

the new highway will be a total of 54 miles long. will the highway be finishe in 8 months

*March 25, 2014 by angie tran*

**math**

using the example above, the new highway will be a total of 54 miles long. will the highway be finished in 8 mouths

*February 24, 2013 by salma*

**physics**

A highway is being constructed to accommodate traffic for speeds of 22.8 m/s. If the angle of the bank is 6.28° and there is no friction force, what is the highway's curve radius?

*October 24, 2016 by abdul*

**Math, Geometry**

The percent grade of a highway is the amount that the highway raises or falls in a given horizontal distance. For example, a highway with a four percent grade rises 0.04 mile for every 1 mile of horizontal distance. a. How many feet does a highway with a six percent grade rise...

*April 4, 2014 by Luis*

**Math**

The percent grade of a highway is the amount that the highway raises or falls in a given horizontal distance. For example, a highway with a four percent grade rises 0.04 mile for every 1 mile of horizontal distance. a. How many feet does a highway with a six percent grade rise...

*April 4, 2014 by Jose*

**calc**

The department of transportation has proposed a new 7-mile stretch of highway. The elevation of the highway x miles along the path is given by E(x)=.004 (x^4-8x^3)+2. Where is the steepest point

*April 16, 2015 by Anonymous*

**Math**

Millwood City is constructing a new highway through town. The construction crew can complete 5 3/5 miles of road each month. 6Can the highway be finished in 8 months?

*May 12, 2015 by Millwoof*

**Science**

A highway is to be built between two towns, one of which lies 98.0 km south and 24.0 km west of the other. (a) What is the shortest length of highway that can be built between the two towns, and (b) at what angle would this highway be directed, as a positive angle with respect...

*September 1, 2010 by GG*

**physics**

A highway is to be built between two towns, one of which lies 49.0 km south and 95.0 km west of the other. (a) What is the shortest length of highway that can be built between the two towns, and (b) at what angle would this highway be directed, as a positive angle with ...

*September 28, 2011 by Jaspreet*

**physics**

A highway is to be built between two towns, one of which lies 47.0 km south and 69.0 km west of the other. (a) What is the shortest length of highway that can be built between the two towns, and (b) at what angle would this highway be directed, as a positive angle with respect...

*August 21, 2014 by natalie*

**physics**

a highway is to be built between two towns, one of which lies 35.0 km south and 72.0 km west of the other. what is the shortest length of highway that can be built between the two towns, and at what angle would this highway be with respect due to west? can some one solve this ...

*October 16, 2009 by blake*

**intermediate algebra**

A farmer with 3000 feet wants to enclose a rectangular plot that borders on a straight highway. If the farmer does not fence the side along the highway, what is the largest area that can be enclosed?

*March 8, 2010 by irma*

**math**

A farmer with 2000 meters of fencing wants to enclose a rectangular plot that borders on a straight highway. If the farmer does not fence the side along the highway, what is the largest area that can be enclosed?

*October 3, 2011 by lulu*

**math**

Mr. Mitchells office is on a winding side road next to a highway exit.He is driving on the highway at 60mph, and at this rate he expected to arrive at his office at 8:45a.m.However at 8:30 he was forced to leave the highway and take the side road, driving at a steady speed of ...

*March 16, 2009 by nancy*

**Calculus**

A road perpendicular to a highway leads to a farmhouse located 6 mile away. An automobile traveling on the highway passes through this intersection at a speed of 55mph. How fast is the distance between the automobile and the farmhouse increasing when the automobile is 2 miles ...

*April 10, 2015 by Nicole*

**Math**

According to a rating agency, a car's MPG (miles per gallon) ratings are: 25 MPG for city and 30 MPG for highway driving. A driver spent $20.00 (the gasoline costs $1.25/gallon) on a combined city and highway trip of 450 miles. How many miles "C" in city and "H" on highway was...

*July 26, 2008 by Andrea*

**intermediate algebra**

A farmer with 3000 feet of fencing wants to enclose a rectangular plot that borders on a straight highway. If the farmer does not fence the side along the highway, what is the largest area that can be enclosed?

*March 8, 2010 by irma*

**Math**

According to a rating agency, a car's MPG (miles per gallon) ratings are: 25 MPG for city and 30 MPG for highway driving. A driver spent $20.00 (the gasoline costs $1.25/gallon) on a combined city and highway trip of 450 miles. How many miles "C" in city and "H" on highway was...

*July 28, 2008 by Andrea*

**Math**

According to a rating agency, a car's MPG (miles per gallon) ratings are: 25 MPG for city and 30 MPG for highway driving. A driver spent $20.00 (the gasoline costs $1.25/gallon) on a combined city and highway trip of 450 miles. How many miles "C" in city and "H" on highway was...

*July 28, 2008 by Andrea*

**Math**

Officer Weihe is in a patrol car sitting 25ft from the highway and observes Jacob in his car approaching. At a particular instant, t seconds, Jacob is x feet down the highway. The line of sight to Jacob makes an angle of theta radians to a perpendicular to the highway. Find (...

*November 17, 2013 by Crain*

**English**

Choose the sentence that is written in active voice. A. A serious accident was prevented on the highway by Roger's quick thinking. B. Roger's quick thinking prevented a serious accident on the highway. C. A serious accident was prevented on the highway. D. A serious accident ...

*November 22, 2015 by Sam*

**physics**

A 1000 kg car is travelling on the highway at a constant speed of 110 km/h. The highway makes a turn that is banked at an angle of 10o and has a radius of 160 m. What is the coefficient of friction between the car tires and the pavement in the curve?

*April 25, 2012 by myra*

**Math**

Rochelle's car average 32.5 miles per gallon the highway.At that rate,how many gallons of gas will her car use for driving on the highway for 260 miles?

*September 14, 2015 by LayLay*

**algebra**

at the airport the new run way will be parallel to a highway. on the scale drawing of the airport the equation that represents the highway is 6y=8x-11. what is the equation for the runway

*April 12, 2012 by sb*

**physics**

Driving down Highway 401 in Ontario, it had rained and stopped raining by the time I came to the freezing rain on the highway. I knew there was a problem when the cars in front of me started to fly off the highway at the curve in the road. Assume the curve in the road is ...

*March 22, 2016 by Tom*

**Trigonometry**

Points A and B 1000 meter apart are plotted on a straight highway running east and west. from A, the bearing of tower C is N32*W and from be, the bearing of C is N64*E. approximate the shortest distance of the tower from the highway. please explain........

*September 9, 2012 by Roy*

**economics**

To save on gasoline expenses, Edith and Mathew agreed to carpool together for traveling to and from work. Edith preferred to travel on I-20 highway as it was usually the fastest, taking 25 minutes in the absence of traffic delays. Mathew pointed out that traffic jams on the ...

*May 25, 2013 by sugar*

**trigonometry**

An airplane is flying at an elevation of 5150 ft, directly above a straight highway. Two motorists are driving cars on the highway on opposite sides of the plane, and the angle of depression to one car is 35° and to the other is 55°. How far apart are the cars? (Round your ...

*December 2, 2012 by heather*

**Social Studies**

What were the effects of the interstate highway system? 1.it caused decline in air 2.it connected surban areas to metropolitan areas 3.highway constructions projects created jobs 4.it enabled people to drive longer distances at faster speeds my best answer is 1 and 3 can u ...

*May 20, 2016 by Anastasia*

**math**

Mark's house is 90 miles away from New York. You travel 15 miles on city streets, and then 75 miles on the highway. a. your average speed is 25 miles per hour in the city and 60 miles per hour on the highway. Use the formula time=distance/rate. How much time will you spend ...

*May 30, 2013 by Celest*

**math**

two cars are approaching each other on the same highway one from san bernardino at 80 mph and the other from las vegas at 60 mph how far apart are they on the highway one hour before they meet?

*November 10, 2015 by DC*

**physics**

a car travels along a highway with a velocity of 24m/s, west. then exits the highway and 4s later, its instantaneous velocity is 16m/s, 45degrees north of west. Calculate the magnitude of the average accelaration of the car during the 5s interval?

*July 31, 2010 by linda*

**economics**

To save on gasoline expenses, Edith and Mathew agreed to carpool together for traveling to and from work. Edith preferred to travel on I-20 highway as it was usually the fastest, taking 25 minutes in the absence of traffic delays. Mathew pointed out that traffic jams on the ...

*July 3, 2014 by Helen*

**math**

The transmitter site of radio station WGGW and the transmitter site of another radio station, WGWB, are on the same highway 100 miles apart. The radio signal from the transmitter site of WGWB can be received only within a radius of 60 miles in all directions from the WGWB ...

*February 11, 2012 by reena*

**algebra 2**

The fuel efficiency rating for a certain car is 28 miles per gallon on the highway and 21 miles per gallon in the city. During one week the car traveled a total of 10.5 gallons of fuel. a) please set up an equation(s) that would model the situation.(be sure to identify ...

*October 18, 2015 by Alvin*

**trigonometry**

An airplane is flying at an elevation of 5150 ft, directly above a straight highway. Two motorists are driving cars on the highway, both on one side of the plane. If the angle of depression to one car is 34° and to the other is 51°, how far apart are the cars? (Round your ...

*December 2, 2012 by heather*

**Calculus**

a rectangular lot adjacent to a highway is to be enclosed by a fencing cost $ 2.50 per foot.along the highway $1.50 per foot on the other sides find the dimension of the largest lot that can be fenced off for $270. Thank you God bless. Badly need it

*February 11, 2016 by Zhel*

**Algebra 2**

The shape of a park can be modeled by a circle with the equation x^2 + y^2 = 1600. A stretch of highway near the park is modeled by the equation y = 1/40(x - 40)^2. At what points does a car on the highway enter or exit the park? I am soooooo lost!

*May 22, 2014 by Andrew*

**physics**

A car travels along a highway with a velocity of 24 m/s, west. The car exits the highway and 4.0 s later, its instantaneous velocity is 16 m/s, 45o north of west. What is the magnitude of the average acceleration of the car during the five-second interval?

*July 17, 2010 by axel*

**math**

a cb radio station c is located 3 mi from the interstate highway h. the station has a range of 6.1 mi in all directions from the station. if the interstate is along a straight line, how many miles of highway are in the range of this staion?

*May 15, 2012 by jay*

**Math**

Could someone answer this question so I understand it. The answer is 28.0, but i'd like to know how to do it. Thanks Randomly selected cars were weighed, and the highway fuel consumption amounts (in miles/gal) were determined. For 20 cars, the linear correlation coefficient is...

*November 30, 2011 by JAY*

**Geometry Part 2**

A highway makes an angle of 6 with the horizontal.This angle is maintained for a horizontal distance of 5 miles.To the nearest hundredth of a mile, how high does the highway rise in this 5- mile section?Show the steps you use to find the distance.

*April 15, 2013 by Karen*

**physical**

A highway of concrete slabs is to be built in the Libyan desert, where the highest air temperature recorded is 57.8 °C. The temperature is 23.1 °C during construction of the highway. The slabs are measured to be 11.7 m long at this temperature. How wide should the expansion ...

*July 23, 2012 by itufizik*

**math**

It takes 4 workers five days to clean 180 miles of highway. How many workers are needed to clean 250 miles of highway in just 6 days?

*April 25, 2010 by joey*

**maths**

A straight highway leads to the foot of a tower of height 50m. From the top of the tower, the angles of depression of two cars standing on the highway are 30 degree and 60 degree. What is the distance between the two cars and how far is each car from the tower ?

*October 17, 2013 by Ruth*

**maths**

A straight highway leads to the foot of a tower of height 50m. From the top of the tower, the angles of depression of two cars standing on the highway are 30 degree and 60 degree. What is the distance between the two cars and how far is each car from the tower ?

*October 17, 2013 by Ruth*

**English**

What does diverge mean in the following sentence? After traveling approximately 3.5 miles, the old highway will diverge. Stay in the left lane and follow until you see the new mall. a. the highway will end. b. the highway will divide into two lanes that go in different ...

*November 27, 2013 by Anonymous*

**PHYSICS**

A banked circular highway curve is designed for traffic moving at 60 km/h. The radius of the curve is 205 m. Traffic is moving along the highway at 40 km/h on a rainy day. What is the minimum coefficient of friction between tires and road that will allow cars to negotiate the ...

*December 4, 2008 by J*

**physics**

A banked circular highway curve is designed for traffic moving at 84 km/h. The radius of the curve is 152 m. Traffic is moving along the highway at 43 km/h on a rainy day. What is the minimum coefficient of friction between tires and road that will allow cars to negotiate the ...

*October 30, 2009 by joann*

**Physics Mechanics**

A banked circular highway curve is designed for traffic moving at 57 km/h. The radius of the curve is 211 m. Traffic is moving along the highway at 48 km/h on a rainy day. What is the minimum coefficient of friction between tires and road that will allow cars to negotiate the ...

*February 20, 2011 by D*

**Math**

Millwood City is constructing a new highway through town. The construction crew can complete 5 3/5 miles of road each month. Can the highway be finished in 8 months? 6 1/2 months have already passed by and so far they have 36 2/5 miles complete. Thanks! My friend and I are ...

*May 12, 2015 by First Name*

**Ap calc**

A traffic engineer monitors the rate at which cars enter a freeway onramp during rush hour. From her data, she estimates that between 4:30pm and 5:30pm the rate R(t) at which cars enter is given by: R(t)= 100(1-0.00012t^2) car per min., where t is time in min. since 4:30. a. ...

*February 15, 2011 by justin*

**Business**

To save on gasoline expenses, Edith and Mathew agreed to carpool together for traveling to and from work. Edith preferred to travel on I-20 highway as it was usually the fastest, taking 25 minutes in the absence of traffic delays. Mathew pointed out that traffic jams on the ...

*April 29, 2014 by Ki*

**Math**

Fifteen smart cars were randomly selected and the highway mileage of each was noted. The analysis yielded a mean of 47 miles per gallon and a standard deviation of 5 miles per galon. Which of the following would represent a 90% confidence interval for the average highway ...

*March 29, 2015 by Arturo*

**Math - Linear Equations**

A car gets 21 mi/gal in city driving and 28 mi/gal highway driving. If 18 gal of gas are used in traveling 448 mi, how many miles were driven in the city, how many driven on the highway (assuming that only the given rates of usage were actually used)?

*November 19, 2007 by Chuck*

**AP Calculus AB**

A traffic engineer monitors the rate at which cars enter a freeway onramp during rush hour. From her data, she estimates that between 4:30 pm and 5:30 pm, the rate R(t) at which cars enter is given by: R(t)=100(1-0.00012t^2) cars per minute, where t is time in minutes since 4:...

*February 13, 2011 by Destinyyy*

**trigonometry**

a surveyor 1standing on a highway observed the angle of elevation of the airplain as 22.5°. at the same time, a surveyor 2 observed the angle of elevation of the same airplane to be 30°. if the airplane was 850m directly above a point on the highway, find the distance ...

*January 12, 2015 by betty*

**math**

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 How can this be possible?

*February 27, 2012 by Anonymous*

**Physics**

A banked circular highway curve is designed for traffic moving at 60 km/h. The radius of the curve is 207 m. Traffic is moving along the highway at 42 km/h on a rainy day. What is the minimum coefficient of friction between tires and road that will allow cars to take the turn ...

*September 27, 2010 by Lance*

**physics**

A banked circular highway curve is designed for traffic moving at 55 km/h. The radius of the curve is 220 m. Traffic is moving along the highway at 38 km/h on a rainy day. What is the minimum coefficient of friction between tires and road that will allow cars to take the turn ...

*October 5, 2010 by Vipre*

**physics**

A banked circular highway curve is designed for traffic moving at 57 km/h. The radius of the curve is 216 m. Traffic is moving along the highway at 42 km/h on a rainy day. What is the minimum coefficient of friction between tires and road that will allow cars to take the turn ...

*March 17, 2016 by krals*

**Math**

The city highway department bought 3/4 tons of salt to put on the road when it snows. They have used 2/7 of salt. How many tons has the city highway department used?

*October 3, 2016 by Dani*

**physics**

A car is traveling at a constant speed of 27.1 m/s on a highway. At the instant this car passes an entrance ramp, a second car enters the highway from the ramp. The second car starts from rest and has a constant acceleration. What acceleration must it maintain, so that the two...

*October 10, 2011 by abbie*

**phyics**

A car is traveling at a constant speed of 31.8 m/s on a highway. At the instant this car passes an entrance ramp, a second car enters the highway from the ramp. The second car starts from rest and has a constant acceleration. What acceleration must it maintain, so that the ...

*September 24, 2013 by larry*

**physics**

A car is traveling at a constant speed of 25.5 m/s on a highway. At the instant this car passes an entrance ramp, a second car enters the highway from the ramp. The second car starts from rest and has a constant acceleration. What acceleration must it maintain, so that the two...

*August 6, 2015 by sarah*

**Physics**

A banked circular highway curve is designed for traffic moving at 65 km/h. The radius of the curve is 207 m. Traffic is moving along the highway at 43 km/h on a rainy day. What is the minimum coefficient of friction between tires and road that will allow cars to negotiate the ...

*February 13, 2012 by Lily*

**Calculus**

A straight driveway perpendicular to a straight highway leads to a house located one mile away. A truck travels past the house traveling 60 miles per hour. How fast is the distance between the truck and the house increasing when the truck is three miles past the intersection ...

*October 25, 2010 by Fred*

**Algebra 2**

Your car gets 25 mi/gal around town and 30 mi/gal on the highway. a. If 50% of the miles you drive are on the highway and 50% are around town, what is your overall average miles per gallon? b. If 60% of the miles you drive are on the highway and 40% are around town, what is ...

*February 14, 2013 by Mia*

**Civics**

The Emergency Highway Energy Conservation Act was passed in 1974. Under this act, states would only get federal highway funding if they set a speed limit of 55 mph on all four-lane highways. Why would the federal government deny funding the states instead of just directly ...

*June 16, 2016 by Frisk*

**math**

John said that he had been working for the highway department for about 9.75 years. Which of the following could be the actual amount of time, in years, that John had been working for the highway department. f) 9.25 g) 9.35 h) 9.65 i) 9.95

*May 31, 2011 by Sara*

**Math**

John said that he had been working for the highway department for about 9.75 years. Which of the following could be the actual amount of time, in years, that John had been working for the highway department. f) 9.25 g) 9.35 h) 9.65 i) 9.95

*June 1, 2011 by URGENT URGENT URGENT*

**math**

monica keeps a supply of dimes and quarters in her car for highway tolls.A week's supply of toll coins contains 10 more dimes than quarters and totals $11.50. How many quarters does monica spend on highway tolls in one week? F. 26 G. 30 H. 36 I. 40

*February 25, 2010 by dee*

**trig**

a state trooper is hidden 30ft. from a highway. One second after a truck passes, the angle beta between the highway and the line of ovservation from the patrol car to the the truck is measured. if the speed limit is 55mph and a speeding ticket is issued for speeds of 5mph or ...

*July 8, 2008 by kay*

**calculus**

You work for the silver there is a home with a driveway 2 miles long extending to the house from a nearby highway. the nearest connection box is along the highway but 5 miles from the driveway. it costs the company $100 per mile to install cable along the highway and $140 per ...

*February 15, 2011 by scott*

**social studies**

The Emergency Highway Energy Conservation Act was passed in 1974. Under this act, states would only get federal highway funding if they set a speed limit of 55 mph on all four-lane highways. Why would the federal government deny funding the states instead of just directly ...

*December 21, 2016 by Anonymous*

**Physics 12**

A sports car is travelling along a highway at a constant velocity of 36 m/s [N] exceeding the speed limit. It passes an unmarked police car parked on the shoulder of the highway. The police car accelerates from rest, 3.0 s after the sports car passed it, at the rate of 6.0 m/...

*September 18, 2014 by John*

**physics**

meerany A flat (unbanked) curve on a highway has a radius of 220.0 Ill. A car rounds the curve at a speed of 25.0 m/s. (a) What is the minimum coefficient of friction that will prevent sliding? (b) Suppose the highway is icy and the coefficient of friction between the tires ...

*December 8, 2010 by aleen*

**Math**

Hey can anybody please help me with this? Im stuck? I got the first part right, but I don't really know. Ok here's the problem: Annie kept track of the cars she saw on the highway? She saw twice as many Toyotas as Skyalks. The number of Pintos was eight less than the number of...

*September 16, 2010 by Anonymous*

**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 confused!!! Please help!!! (and please show me how you ...

*December 2, 2009 by Ashley*

**Calculus**

A section of highway connecting two hillsides with grades of 6% and 4% is to be build between two points that are separated by a horizontal distance of 2000 feet. At the point where the two hillsides come together, there is a 50-foot difference in elevation. a) Design a ...

*December 3, 2007 by Jon*

**Calculus**

A section of highway connecting two hillsides with grades of 6% and 4% is to be build between two points that are separated by a horizontal distance of 2000 feet. At the point where the two hillsides come together, there is a 50-foot difference in elevation. a) Design a ...

*December 4, 2007 by Jon*

**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 ...

*March 2, 2012 by Anonymous*

**Calculus**

1)A north south highway, intersects an east west highway, at point P. A vehicle process point P @ 1pm, traveling east at a constant speed of 60km/h. At the same instant another vehiclist 5km north of P, travelling south at 80km/h, find the time, when the 2 vehicles are closest...

*April 24, 2014 by Deepa*

**calculus**

this is a optimization problem A construction company has been offered a contract for $7.8 million to construct and operate a trucking route for five years to transport ore from a mine site to a smelter. The smelter is located on a major highway, and the mine is 3 km into a ...

*July 25, 2011 by robert*

**Math help!**

A car goes 18 miles on a gallon of gas in city driving and 24 miles on the highway. If the car goes 465 miles on a full tank of 23 gallons of gas, how many miles were driven in the city and how many miles were driven on the highway?

*April 27, 2015 by Yin*

**Math**

Murphy’s motorcycle gets 55 miles per gallon of gas on the highway and 45 miles per gallon in the city. The motorcycle holds 8 gallons of gas. Write and simplify an expression for the total number of miles Murphy can travel if he has a full tank of gas but uses 2 gallons on ...

*September 17, 2008 by Lily*

**Math**

The Honda Civic Hybrid vehicle, powered by gasoline-electric technology, gets 49 miles per gallon in city driving and 51 miles per gallon in highway driving. The car is driven 447 miles on 9 gallon of gasoline. How many miles were driven in the city and how many were driven on...

*April 17, 2009 by John*