# Homework Help: Computers: Operating Systems

## Recent Homework Questions About Operating Systems

**Algebra**

John and Kathleen each improved their yards planting rose bushes and shrubs . They bought their supplies from the same store. John spent $228 on 12.rose bushes and 11 shrubs. Kathleen spent $108,on 6 rose bushes and 5 shrubs. Find the cost of one rose bush and the cost of one ...

*Sunday, February 12, 2017 by Kevin*

**Algebra**

Write a system of equations to solve each word problem. You deposit a total of $900 in two different accounts. One account provides an interest rate of 5% while the other account provides an interest rate of 8%. If you earned a total of $64.50 in interest between the two ...

*Sunday, February 12, 2017 by Kevin*

**Algebra**

Set up and solve a system of equations The school that Joe goes to is selling tickets to a spring musical. On the first day of ticket sales the school sold 12 adult tickets and 2 child for a total of $122. The school took $160 on the second day by selling 7 adult tickets and 8...

*Sunday, February 12, 2017 by Angie*

**math**

(19) Does the following system of equations have a solution? If it does, find one; if not, explain why not. √ x + √ y = 1 r 4x 9 − r 25y 64 = 1

*Sunday, February 12, 2017 by sukh*

**Algebra**

Set up a system of equations for each word problem One scuba diver starts at a depth of 12 meters below the water's surface and ascends at a rate of 1 meter per second. A second diver starts at a depth of 15 feet and ascends at a rate of 2 meters per second. After how many ...

*Sunday, February 12, 2017 by Kevin*

**Algebra**

Set up and solve a system of equations for each problem John and Belinda are selling pies for a school fundraiser. Customers can buy apple pies and cherry pies. John sold 3 apple pies and 9 cherry pies for a total of $183. Belinda sold 6 apple pies and 13 cherry pies for a ...

*Sunday, February 12, 2017 by Zoe*

**physics**

Question 01: 2.0g of Nitrogen gas is at 270C in a fixed volume. If 20% of its total internal energy is due to rotation what is the average velocity of nitrogen molecules? What will be the temperature 2.0 g of Helium gas in a fixed volume if the average velocity of its ...

*Sunday, February 12, 2017 by hash*

**Physics**

If the heat of 110J is added to a gaseous system, change in internal energy is 40J, then the amount of external work done is?

*Sunday, February 12, 2017 by Anshu*

**Physics**

a periscope is an optical instrument made of two plane mirrors inclined at an angle 45 with respect to the axis of the tube. an observer places her eye at point O. draw the path of a ray light issued from A. determine the position and the nature of the image of A given by two ...

*Saturday, February 11, 2017 by Sarah*

**math**

What is the solution of the system of equations? y=5/6x+1 −x+y=2 Enter your answer in the boxes.

*Saturday, February 11, 2017 by Jay*

**math**

What is the solution of the system of equations? 13x−6y=2 3x−4y=−10 Enter your answer in the boxes.

*Saturday, February 11, 2017 by Jay*

**Government**

Which is a more stable governmental system? Authoritarian or Democratic? I know democratizing countries can be more unstable. However, authoritarian countries like China and Russia are becoming more centralized and are limiting civil liberties in their country.They operate ...

*Friday, February 10, 2017 by Lisa*

**Physics**

In an inelastic collision, a steel ball of mass 200 g was hit hard into a large ball of dough of mass 700 g. The velocity of the steel ball was 25m/s. After the collision, the steel ball was stuck in the dough, and this combined system rolled for some time. What was the ...

*Friday, February 10, 2017 by kek*

**math**

A birch tree that is 4 ft tall grows at a rate of 1 ft per year. A larch tree that is 6 ft tall grows at a rate of 0.5 ft per year. Let the variable t represent time in years and h represent height in feet. In how many years will the trees be the same height? Which system of ...

*Thursday, February 9, 2017 by Jay*

**math**

What is the solution of the system of equations? 13x−6y=2 3x−4y=−10 Enter your answer in the boxes.

*Thursday, February 9, 2017 by Jay*

**Algebra With Pizzazz**

I missed a week of school and I know nothing. Next thing I know we get page 163 and have to do everything on it. I don't know anything it's on System of equations substitutinal method.

*Thursday, February 9, 2017 by Annie*

**science**

The Sun is unusual because it does not belong to a ____ ? A) solar system B) universe C) galaxy D) binary star system I think the answer is D but I'm not 100% positive.

*Thursday, February 9, 2017 by Anonymous*

**social studies**

1.How have humans negatively impacted the water system of Arkansas? Select all that apply a.The construction of the MKARNS has resulted in more flooding. b.Chemicals and runoff from industry harm wildlife. c.Too much trade along the rivers damages the banks. d.Sediment from ...

*Wednesday, February 8, 2017 by nobody*

**math**

What is the y-coordinate of the solution of the system of equations? y=2x+14 −4x−y=4 Enter your answer in the box. y = ?

*Wednesday, February 8, 2017 by Jay*

**social studies**

Check my answers please Which of the following is the best example of the growing fear of communism and foreigners that America was experiencing in the 1920s? 1. labor unions losing supporters 2. the john scopes trial 3. the harlem renaissance 4. the sacco and vanzetti trial ...

*Wednesday, February 8, 2017 by anonymous*

**Physics**

I have this very confusing two part question that i am having trouble understanding. For the first question i first created a free body diagram to show the forces acting on both the boxes. However i am unsure of what to do after this since i don't understand how to use newtons...

*Tuesday, February 7, 2017 by joe*

**Social Studies**

Which of the following is a major example of Abraham Lincoln's policy of leniency toward the defeated South? A. Pres Lincoln's willingness to have federal government assume responsibility of the Confederate government's war debts. B. Pres Lincoln's choice to have a Southerner ...

*Tuesday, February 7, 2017 by Help please*

**math plzzz help quick**

What is the y-coordinate of the solution of the system of equations? {y=2x+14 {-4x-y=4 Enter your answer in the box. y =

*Monday, February 6, 2017 by lily*

**math plzzz help quick**

What is the y-coordinate of the solution for the system of equations? {x-y=-11 {y+7=-2x Enter your answer in the box. y =

*Monday, February 6, 2017 by lily*

**value**

An Effort Of 250N Raises A Load Of 1000N Through 5m In A Pulley System.If The Effort Moves 30m,what Is; (a)the Work Done In Raising The Load (b)the Work Done By The Effort (c)the Efficiency

*Sunday, February 5, 2017 by mr.m*

**physics**

The drawing shows two blocks that are placed at the ends of a massless board. The board is balanced on a support that serves as an axis of rotation. The block on the left has a mass of 5.8 kg. What is the moment of inertia of this system about the axis of rotation?

*Friday, February 3, 2017 by Tyler*

**Physics**

There is a block of mass 1 on a frictionless surface attached to a string. The string goes over a frictionless pulley. The pulley is a hoop with a rotational inertia of I=MR^2. The other end of the string is attached to a hanging block of mass 2. The hanging block is then ...

*Friday, February 3, 2017 by Gill Walker*

**History**

Which one of the following would likely be the action of one who supports the 18th Amendment? A organizing and hosting a rally for the Women’s Temperance Union B setting up a system of distribution for bootlegged alcohol C appealing to Congress that women deserve the right ...

*Friday, February 3, 2017 by Need help*

**Social Studies**

in 3-5 sentences describe the apportionment system for state legislative districts I cant seem to think of any please help

*Friday, February 3, 2017 by joel*

**math**

What is the value of x + y in the solution to the system of equations below? x + 8y = 2 y = -0.25x I just need the best explanation so i can do all my other problems cause im confused.

*Thursday, February 2, 2017 by edgard*

**History**

1. What was the effect of the Bull moose party's entrance into the presidential election of 1912? A. It split the Republican vote and allowed the Democrats to win. ** B. It prevented any of the three parties from winning a majority of electoral votes. C. It split the ...

*Thursday, February 2, 2017 by Hey Hey Hey*

**Check answers please: Health**

1. When reading a recipe's ingredients, which substance makes the recipe an unhealthy choice if it is present in a high amount? A. Fiber B. Protein C. Trans fat*** D. Unsaturated fat 2. Of the five food groups, which one should be consumed in the smallest amount? A. Dairy*** B...

*Thursday, February 2, 2017 by ThatOneLoaf*

**History**

1. What belief united the Progressive movement? A) that society's problems could be solved B) that education needed reform C) that there should be a federal income tax D) that political bosses should not hold office 2. What was the main reason for the creation of the civil ...

*Thursday, February 2, 2017 by Amilia*

**algebra**

Plumber chargers $60 an hour. Plumber B chargers $40 to visit your home plus $55 for each hour. for hop many hours will the total cost for each plumber be the same? how much will that cost be? Define your variables: Write a system of equations: solve the system of equation ...

*Wednesday, February 1, 2017 by kasidy*

**Math**

System Of Elimination: Greg invested $11,000 in two accounts. The first account pays 5% interest per year. The second account pays 8% interest per year. Greg earned a total of $752.50 in interest at the end of the first year. How much did Greg invest in the 5% account? ~I don'...

*Wednesday, February 1, 2017 by edgard*

**science**

Which of the following set of terms could be used in a description of the peripheral nervous system? A)motor neurons and sensory neurons B) brain and spinal cord C)motor neurons and brain D) sensory neurons and spinal cord

*Wednesday, February 1, 2017 by HELP*

**American Government**

5. Which of the following is an example of checks and balances in government? A. Congress can override a presidential veto by a two-thirds vote in each house. B. The legislature and judiciary work together to enact legislation. C. The president appoints the members of the ...

*Wednesday, February 1, 2017 by Abby*

**American Government**

I want to see if my answers are right. Here are just a few for now. 1. Which statement accurately explains the key difference between the divine right of kings and a constitutional government? A. The divine right of kings and a constitutional government are based on the idea ...

*Wednesday, February 1, 2017 by Abby*

**Math (Elementary Linear Algebra)**

Find the general flow pattern of the network. 20<---A |\B__>x(4) |/ 80<---C I believe the system of equations for A,B,&C is-A: x(1)+x(3)=20 B: x(2)=x(3)+x(4) C: 0=x(1)+x(2) Assuming flows are all nonnegative, what is the largest possible value for x(3). Sorry, this ...

*Tuesday, January 31, 2017 by Sara*

**science**

The orbits of planets being elliptical was one the planetary laws developed by ==A. Kepler. B. Brahe. C. Ptolemy. D. Copernicus. If a car travels from Town A to Town B on one road at different speeds and stops at red lights, knowing the distance between the towns and the ...

*Tuesday, January 31, 2017 by Check answers please*

**Algebra**

3. What would be the simplest way to solve the system? y=1/2x 2x + 3y = 28 A. Graphing B. Substitution***** MY ANSWER! C. Elimination D. Distributive 4. What is the solution of the system? y=-3x 2x + 3y = 6 A. (2,6) B. (-1,3) C. (-2,6)*****MY ANSWER! D. (1.5, -4.5) Please help...

*Tuesday, January 31, 2017 by Glad To Help*

**History**

The purpose of the totalitarian system is the creation of a new and just society. Why this goal is not achieved? / ESSAY /

*Tuesday, January 31, 2017 by Alexsandyr*

**physics**

a truck of mass 5000kg is used to tow a jeep of mass 2500kg, the truck moves with a speed of 3.0ms(power -1) just before the towing rope becomes taut,calculate the speed of the truck just before the towing rope became taut,loss of kinetic energy of the system just after the ...

*Monday, January 30, 2017 by David*

**Social Studies**

Buddhism became popular in part because it did not defend.... 1. dharma 2. the Hindu gods 3. the caste system**** 4. life after death This religion believes that the way to stop suffering is to stop desire 1. Buddhism*** 2. Judaism 3. Hinduism 4. Jainism This religion believes...

*Monday, January 30, 2017 by Anonymous*

**chemistry**

Calculate ∆S universe for the process H2O (s) → H2O (l) given that ∆Hfusion = 6.02 kJ/mol and ∆S system = 22.1 J/K mol . Remember that ∆S surrounding = -∆Hsystem / T. a) -20oC b) 0oC c) 20oC

*Sunday, January 29, 2017 by Mi*

**Physics**

Two geological field teams are working in a remote area. A global positioning system (GPS) tracker at their base camp shows the location of the first team as 38 km away, 19deg north of west, and the second team as 28.7 km away, 35deg east of north. When the first team uses its...

*Sunday, January 29, 2017 by Sarah*

**La state history**

in 3-5 sentences describe the apportionment system for state legislative districts I cant seem to think of any please help. Ms.Sue

*Sunday, January 29, 2017 by Brah*

**Math show work**

If a hypothetical planet in our Solar System had a sidereal period of 11.1 Earth years and a circular orbit, how far from the Sun in Astronomical Units would it be? Enter your answer to the nearest 0.01 AU.

*Saturday, January 28, 2017 by help*

**Math**

If a hypothetical planet in our Solar System had a sidereal period of 11.1 Earth years and a circular orbit, how far from the Sun in Astronomical Units would it be? Enter your answer to the nearest 0.01 AU.

*Saturday, January 28, 2017 by johhny 5*

**PHYSIC**

A PULLEY SYSTEM HAS A VELOCITY RATION OF 6 AND EFFECERIY OF 90% calculte the value of the effort required to l 500N

*Saturday, January 28, 2017 by PETER .J.KUFA*

**physics**

IF a particular galaxys has a total mass of 10 to the 56 grams and the average star in that galaxy has a mass of 10 to the 35 grams, approximately how many stars are there in that galaxy? Give your answer to the nearest whole power of 10 by entering the exponent only. A ...

*Saturday, January 28, 2017 by arias*

**Math**

If an object which weighs 100 lbs on the Earth's surface were placed on a planet with 2 times the radius of the Earth and with 7 times the Earth's mass, how much would that object weigh? Enter answer to nearest 0.1 lbs. The term "void ratio" means the ratio of the volume of ...

*Saturday, January 28, 2017 by james bond*

**physics**

1.A certain spacecraft is 3.3 AU (Astronomical Units) from Earth. How long in seconds does it take for a signal to reach the Earth after it is transmitted from the spacecraft? Hint: An AU is about 149.9 Million Km, and light moves at 299,800 Km/s. {Indicate your answer to the ...

*Saturday, January 28, 2017 by jere*

**Social Studies**

Are these correct? _ The maquiladoras zone helped create jobs by encouraging development where? A. Northern Mexico (B.) Southern Mexico C. Baja Pennisula D. Mexico City suburbs _ The United States wields significant power in the A. Association of Southeast Asian Nations (ASEAN...

*Wednesday, January 25, 2017 by Anonymous*

**physics**

Two cars (A and B) of mass 1.1 kg collide. Car A is initially moving at 18 m/s, and car B is initially moving in the opposite direction with a speed of 9 m/s. The two cars are moving along a straight line before and after the collision. (Enter the magnitudes.) If the two cars ...

*Tuesday, January 24, 2017 by jake*

**math**

Write a system of equations to describe the situation below, solve using substitution, and fill in the blanks. Ella is starting a business selling handmade necklaces. She has decided to invest an initial amount of $57 for advertising, and materials cost $7 for each necklace ...

*Tuesday, January 24, 2017 by dmoney*

**Math - Algebra 1**

A field must be fenced in. There is 212 yards of fencing material to be used. What should the dimensions of the enclosed area be to ensure that is has the largest area possible? (system of equations) Dimensions_____________________

*Tuesday, January 24, 2017 by Lauren*

**Math - Algebra 1**

Each cow eats 4.5 cups of feed a day and the bucket it comes in contains 250 cups. The buckets cost $26.75 each. If a farm has 16 cows, how much will it cost to feed all of the cows for 1 week? (system of equations) Cost____________________

*Tuesday, January 24, 2017 by Lauren*

**Social studies**

how did the spoils system affect president james Garfield and his successor Chester A. Arthur?

*Monday, January 23, 2017 by Liziana*

**Astronomy**

1. How did the geocentric model explain the retrograde motion of planets? A. Earth moves faster in its orbit and passes the other planets. B. The planets move backward when they get too close to earth. C. The planets travel in circles as they move around earth in a circle. D. ...

*Monday, January 23, 2017 by M*

**Math 114**

what is the solution of the system of equations of x-y=-3 and x+y=5? x-y=-3 x+y=5 y=x+3 0+y=5 x=3 0=0+y=5+0 y=x+3 y=5 y=3+3 y=6

*Friday, January 20, 2017 by Rosa*

**Social Studies**

Who's job is it to line up the votes of the members of the party that holds the most seats in a chamber? A) president pro tempore B) Speaker of the house C) Minority whip D) majority whip **** The president of the Senate also serves as the _____? A) Head of the Appropriations...

*Thursday, January 19, 2017 by Rebecca*

**Science**

why can't a model of the solar system be proportionate in distance b/w the planets and size of the planets? I think that a scale model that is proportionate could include both

*Thursday, January 19, 2017 by Lori*

**physics**

Four very thin rods, each 13 m long, are joined to form a square, as part (a) of the drawing shows. The center of mass of the square is located at the coordinate origin. The rod on the right is then removed, as shown in part (b) of the drawing. What are the x- and y-...

*Thursday, January 19, 2017 by Tyler*

**PE**

Why is fiber necessary for proper functioning of the digestive system? 1.It creates cell membranes, nerve tissue, and substances that aid in the digestion of fat. 2.(It helps proper functioning of the digestive system and prevents constipation.) 3.It is important for ...

*Wednesday, January 18, 2017 by Help I need somebody not just anybody*

**Social studies**

What believe united the progressive movement? A. That societies problems could be solved B. That education needed reform C. That there should be a federal income tax D. That political bosses should not hold office What was the main reason for the creation of the civil service...

*Wednesday, January 18, 2017 by Liziana*

**physics**

A 2.9-kg cart is rolling along a frictionless, horizontal track towards a 1.5-kg cart that is held initially at rest. The carts are loaded with strong magnets that cause them to attract one another. Thus, the speed of each cart increases. At a certain instant before the carts ...

*Tuesday, January 17, 2017 by Tyler*

**physics**

Two arrows are fired simultaneously with the same speed of 30.0 m/s. Each arrow has a mass of 0.100 kg. One is fired due east and the other due south. What is the magnitude of the total momentum of this two-arrow system?

*Tuesday, January 17, 2017 by Tyler*

**Math**

Can someone please help me with my open needed question Solve the system by substitution -X-y-z= -8 -4+4y+5z =7 2X+2z= 4

*Tuesday, January 17, 2017 by Amanda*

**Vector Calculus**

Can someone help me with this please. A vector field in cylindrical polar co-ordinates is given by V = R Rˆ + R 3 s i n ( φ ) c o s ( φ ) φˆ + 3 z kˆ where Rˆ, φˆ, kˆ are the appropriate unit vectors. Translate this vector field into the Cartesian x, y, z co-ordinate...

*Monday, January 16, 2017 by Ariana*

**vector calculus**

Can someone help me with this please. A vector field in cylindrical polar co-ordinates is given by V = R Rˆ + R 3 s i n ( φ ) c o s ( φ ) φˆ + 3 z kˆ where Rˆ, φˆ, kˆ are the appropriate unit vectors. Translate this vector field into the Cartesian x, y, z co-ordinate...

*Sunday, January 15, 2017 by Ariana*

**geography**

Describe and account the differences between the drainage pattern of the Indus system and that of Balochistan plateau.

*Sunday, January 15, 2017 by Hamza*

**Algebra 1**

A city planning committee surveys 100 people waiting at a bus stop about the expansion of the public transportation system. Is this an example of a: random sample, systematic sample, self-selected sample, convenience sample, bipartisan sample, or stratified random sample? I ...

*Friday, January 13, 2017 by Natalia*

**finance**

Emma's Cabinets is looking at a project that will require $80,000 in fixed assets and another $20,000 in net working capital. The project is expected to produce annual sales of $110,000 with associated costs (other than depreciation) of $70,000. Kurt’s pay $5,000 a year as ...

*Friday, January 13, 2017 by PMD*

**AP Physics 1**

A 1400 kg car is moving westward with a speed of 12 m/s, and a 3600 kg truck is traveling east with a speed of 27 m/s. Find the velocity of the center of mass of the system. Answer in units of m/sˆ

*Friday, January 13, 2017 by Anonymous*

**Business**

The accrual accounting system is a standard system used by most businesses and is also the system used in the simulation. In relation to the rules of accrual accounting, consider the following question: What is being "unaccounted" for?

*Wednesday, January 11, 2017 by Patte*

**Math**

Using a for airtime and w for water time ,which system of linear equations would you use to solve this problem? A stone falls from the top of a cliff into the ocean . In the air , it had an average speed of 16m/s .In the water ,it had an average speed of 3m/s before hitting ...

*Monday, January 9, 2017 by Ariasas*

**math**

Which ordered pair is a solution to the system of equations? {4x+y=2 −2x+y=5 A. (1, -2) B. (- 1/2, 4) C. (2, -6) D. (7/2, -12)

*Monday, January 9, 2017 by Jay*

**Algebra**

Solve the system by substitution. State whether the system has one solution. Infinite solutions, or no solution. 2x+y=10 x-3y=-2 I believe that the answer is x=4 y=2

*Monday, January 9, 2017 by Kalani*

**American Government**

Please check my answers 1. Which kind of policy was the troubled asset relief program (TARP)? A. It was a fiscal policy and I could buy the federal government to prevent inflation B. It was a monetary policy enacted by the federal government to expand the economy C. It was a ...

*Friday, January 6, 2017 by M*

**American Government**

Check my answers please 1. Which of the following describe the role of an entrepreneur in a capitalist economic system? (I need to select 2) A. Someone who combines the factors of production into a business B. Someone who decides how much regulation the economy needs C. ...

*Friday, January 6, 2017 by M*

**health and P.E.**

Why is fiber necessary for proper functioning of the digestive system? A:It creates cell membranes, nerve tissue, and substances that aid in the digestion of fat. B:It helps proper functioning of the digestive system and prevents constipation. C:It is important for ...

*Friday, January 6, 2017 by Jaden*

**pre calc**

Formulate a system of equations for the situation below and solve. Michael Perez deposited a total of $3000 with two savings institutions. Bank A pays interest at the rate of 6%/year, whereas Bank B pays interest at the rate of 7%/year. If Michael earned a total of $194 in ...

*Thursday, January 5, 2017 by Melissa*

**History**

Your answer 8.5 (C) 1. The Federalists and the Democratic-Republicans emerged as separate political parties partly as a result of disagreement over — * 5 points how the nation should develop economically whether to enforce the Monroe Doctrine how the nation should admit new ...

*Thursday, January 5, 2017 by ...vmju788i dumb guy/./////*

**math**

Determine whether the system of linear equations has one and only one solution, infinitely many solutions, or no solution. 5/4x − 2/3y = 8 1/4x + 5/3y = 7 Find the solution, if one exists.

*Thursday, January 5, 2017 by Melissa*

**math**

Determine whether the system of linear equations has one and only one solution, infinitely many solutions, or no solution. 3x − y = −3 6x − 2y = 8 a) one and only one solution b) infinitely many solutions c) no solution can you please show the work

*Thursday, January 5, 2017 by Melissa*

**American Government**

Please check my answers. 1. Which of the following is a reason explaining why prison populations have increased dramatically? A. Many prisons have close down making the ones that remain overcrowded. B. Many new prisons have been built inspiring states to fill them. C. The ...

*Thursday, January 5, 2017 by M*

**physics (mechanics)**

the potential energy of a system of two particle separated by a distance r is given by u(r) = A/r , where A is constant . find the radial force Fr that each particle exerts on the other

*Thursday, January 5, 2017 by asnke*

**History**

3.How did Spanish colonies differ from French and English colonies? a.Missionaries sought to convert Native Americans to Christianity b.Peninsulares and creoles banned the slave trade, calling it immoral. c.The encomienda system subjected native peoples to forced labor. d.The ...

*Wednesday, January 4, 2017 by Leah<3*

**Social Studies**

4.What was the encomienda system? A. a system in which Spanish monarchs shared with Native Americans the right to demand labor from peons and Africans B. a system in which the Spanish conquistadors granted Native Americans the right to demand labor from peons C. a system in ...

*Wednesday, January 4, 2017 by Leah<3*

**Physics**

Draw a block and tackle system of pulleys with a velocity ratio of 5.A block and tackle with a velocity ratio of 5 is used to raise a mass of 25kg through a vertical distanceof 40cm at a steady rate. If the efforts is equal to 60N, determine a)d distance moved by the effort b)...

*Wednesday, January 4, 2017 by Nelson*

**math**

Mark is 5 years older than twice Jessica's age. The sum of their ages is 32. How old is Mark. Use M to represent Mark's age and J to represent Jessica's age. Which system of equation could be used to find mark's age? ~M=2J+5 M+2J=32 I think it is right please correct me if not...

*Tuesday, January 3, 2017 by edgard*

**math**

2.Two cars leave Kansas City at the same time. One car is moving east and the other west. After 5 hours, the cars are 575 miles apart. One car is traveling 15 miles per hour faster than the other. Let S = the speed of the slower car and F = the speed of the faster car. If one ...

*Tuesday, January 3, 2017 by edgard*

**science**

the body system responsible for the exchange of gases between the body and the enviroment is the

*Tuesday, January 3, 2017 by kate*

**History**

Converted to the Mayan number system, what would be 152 and 100? I'm confused as to how it's set up.

*Tuesday, January 3, 2017 by Nina*

**math**

The difference of two numbers is 321. The larger number is 190 more than twice the smaller number. Which system of equations presents this information? (S = smaller number and L = larger number) I got: L-S=321(the difference) L=2S+190 What did i do wrong please help me

*Tuesday, January 3, 2017 by edgard*

**algebra**

Graph the system of inequalities (shade each half-plane solution,not only the overall solution). y<= 3/2x+3 2x + y<10 y>-1

*Monday, December 26, 2016 by Anneliese*

**algebra**

Please check my system of linear equations using any algebraic method. Show the check,if possible. 8x-6y=12 / 12x-9y=18 8x-6y=12 (eq.1) 12x-9y=18 (eq.2) 4x-3y=6 (eq.1) 4x-3y=6 (eq.2) y=4x-6 / 3 Check: Thank you for your help.

*Monday, December 26, 2016 by Anneliese*

**ENGLISH**

Insert articles in the following sentences whenever required: 5 i Scientists are now beginning to worry about contamination of entire solar system. ii People often say that writer’s life is unimportant and all that matters is in books. That is usually exaggeration. iii In ...

*Monday, December 26, 2016 by SARITHA*

**Government**

Please help me with government 1. The 10th amendment to the Constitution reads as follows: " The powers not delegated to the United States by the Constitution, nor prohibited by it to the States, are reserved to the States respectively, or to the people." According to the 10th...

*Saturday, December 24, 2016 by M*