# Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this. 2x + 10y = 58 -14x + 8y = 140

92,096 questions, page 431
1. ## science

Explain how sonar radars work in boats

asked by Anonymous on March 29, 2018

Write 16/40 in simplest form explain your work???

asked by Tiffany on October 26, 2015
3. ## Physics help!

I need to know all of the equations for WORK problems (Physics). I'm not sure where to find them. if someone could help id appreciate it.

asked by Jim on December 7, 2008
4. ## Algebra

Could someone work this out for me? Someone says the answer is 2.34 x 10^-6 but I think it's 2.34 x 10^-4. 2 x 10^-3 = 3 x 10^8 x 1/6 x pi x d Solving for d. Sorry it's kinda messy.

asked by Zack on August 12, 2009
5. ## ALGEBRA 2

WHAT IS THE RIDDLE TO ALGEBRA WITH PIZZAZZ WORK SHEET 56??

asked by ANGELO on October 13, 2011
6. ## physics

state 3 conditions that must be satisfied for siphon to work well

asked by greggory on June 18, 2018
7. ## science

asked by Katey on December 3, 2013
8. ## Physics

how much work is done when a magnet pulls a piece of iron?

asked by Jeet on November 11, 2011
9. ## Physics

What is the work done in lifting 60 kg of blocks to a height of 20m?

asked by scooby on November 24, 2010
10. ## foreign currency

How does the credit or money market hedge work?

asked by linda on October 2, 2007
11. ## English

Men should help women with the household work in debate like for and against

asked by Shagun on September 17, 2019

Z+5/7=3 home work problem that was not taught in class?

asked by Carole on January 9, 2011
13. ## social studies

where did people work if they were a cook in medieval times

asked by melissa on January 8, 2011
14. ## physics

how much work is done when 100 kg lifted 5 meters above the ground

asked by sol on August 19, 2016
15. ## science

how does the process work to extract hydroelectric power

asked by alyssa on December 17, 2007
16. ## Social Studies

Why do you think the Spanish felt they had the right to force the indians to work for them?

asked by Mia on October 8, 2014
17. ## management

According to Fiedler, the extent to which the work of subordinates is clear so that they know what to do and how to do it is known as

asked by Anonymous on April 21, 2016
18. ## College Physics

To move 5.0 C of charge from one electrode to the other, a 12-V battery must do how much work? 60 J 5.0 C 12 J 12 V 60 W

asked by Lanise on February 6, 2010
19. ## Math/Statistic

If I'm doing a pearson's and need to know the percentage of predicitability... all I have to do is work out the pearon's, right?

asked by Laur on December 8, 2010
20. ## Math

What is the work for the problem 61,125 divided by125

asked by Jose on September 5, 2017
21. ## Literature

Explain how the biography of an artist can impact a work?

asked by Meghan on October 20, 2009
22. ## college

Describe how the muscles work to support breathing.

asked by Cassandra on February 9, 2009
23. ## geography history

Why it is important to follow trends in the work place ?

asked by Anonymous on September 6, 2018
24. ## biology

Describe how the human defense line work.

asked by akim on June 28, 2011
25. ## social studies

what are detors called when they work to pay off there det?

asked by Sally on March 24, 2010
26. ## Science

how do mrna and trna work together to make protein

asked by Steve on October 17, 2013
27. ## Science

Some people prefer to use herbal medicines how will you know if they actually work? Thanks.

asked by Ellen on January 12, 2017
28. ## Algebra

How many solutions does this system of equations have? y = 4x + 3 and 2y - 8x = 3 One, two, infinitely many, or no solutions? My answer is no solutions.

asked by Anonymous on January 14, 2014
29. ## Linear Algebra

I need help please!! How many solutions does the system of equations have? 2x=-10y+6 and x+5y=3 a. one b. two c. infinitely many d. none y=4x+3 and y=4x+4 a. one b. two c. infinitely many d. none x-4y=12 and y=1/4x-3 a. one b. two c. infinitely many d.

asked by Harry on March 13, 2014

please check my answers and if there wrong maybe you could tell me the correct one.but thanks anyways. 1. How did the formation of the National Action Party change Mexican politics? A.It ended the one-party system. B.It consolidated power among a few key

asked by annabelle on January 30, 2014
31. ## social studies(CHECK ASNWERS)

please check my answers and if there wrong maybe you could tell me the correct one.but thanks anyways. 1. How did the formation of the National Action Party change Mexican politics? A.It ended the one-party system. B.It consolidated power among a few key

asked by anna on January 31, 2014
32. ## social studies (CHECK ASNWERS)

please check my answers and if there wrong maybe you could tell me the correct one.but thanks anyways. 1. How did the formation of the National Action Party change Mexican politics? A.It ended the one-party system. B.It consolidated power among a few key

asked by Anonymous on February 3, 2014
33. ## Chemistry

Consider an ideal gas encloesd in a 1.00 L container at an internal pressure of 10.0 atm. Calculate the work, w, if the gas expands against a constant external pressure of 1.00 atm to a final volume of 20.0 L. w = ____ J now calculate the work done if this

asked by Eric on February 9, 2012

Estimate the cost of ending inventory for August for Roman's Jewelry Store using the retail method on the following data: Cost Retail Beginning inventory for August \$180,000 \$288,000 Purchases during August \$70,000 \$112,000 Net sales during August \$80,000

asked by T. on February 8, 2012
35. ## muscle physiology

okay so we did a lab on muscle physiology. acquired one small 2 cm length of psoas muscle . teased the bundle of muscle fibers into individual muscle fibers. aligned 3 individual fibers on each of three different microscope slides and placed 1 fiber on a

asked by Natash on February 24, 2009
36. ## American History

1. Andrew Jackson exerted the power of the presidency by a. allowing South Carolina to secede from the Union. b. depositing federal funds in the National Bank. c. refusing to be bound by Supreme Court decisions. d. vetoing the Force Act of 1833. 2. The

asked by CM on January 28, 2008
37. ## Cost Accouting

Which methods has the most layers of inventory? A.FIFO and LIFO B.Average method C.LIFO D.FIFO E.FIFO and Average methods

asked by Sharvindra on October 19, 2017
38. ## Chemistry II

A stock solution containing manganese ions was prepared by dissolving 1.542 g pure manganese metal in nitric acid and diluting to a final volume of 1.000L. Calculate the concentration of the stock solution. mols Mn = g/atomic mass Mn. M = mols/L 1.542 g /

asked by Jayd on April 16, 2007

asked by Anonymous on June 21, 2012
40. ## Art

During which time period were artists keenly interested in using the golden ratio in their paintings? A.Baroque Period B.Oriental Period C.Futuristic Period D.Renaissance Period •• When the Greeks built the Parthenon its dimensions nearly matched the

asked by Kiana on February 11, 2016
41. ## Science

GCSE Physics-Forces affecting falling objects. My falling object is a skydiver Can you please help me to find the information needed? Nothing too complicated please. Here is a list of things I need to include but I have no idea where this information can

asked by Anonymous on May 4, 2014
42. ## Science

GCSE Physics-Forces affecting falling objects. My falling object is a skydiver Can you please help me to find the information needed? Nothing too complicated please. Here is a list of things I need to include but I have no idea where this information can

asked by Hanna on May 4, 2014

As F. Nicholas Jacobs toured the Windber Medical Center facility, he was dismayed by the industrial pink painted walls, the circa 1970 furniture, and the snow leaking through the windows of the conference room. Employees earned 30 percent less than their

asked by Anonymous on March 26, 2012
44. ## Art Research Paper

It's got to be min. 2 pages. I'm doing it on Andrew Wyeth. This is the only guideline I was given: "As part of your course requirements, you need to choose an artist and research the artist and his or her work." Any ideas on at outline/what I should really

asked by Claire on February 10, 2007
45. ## Biochemistry

you have a 0.200L of solution containing 250mM phosphate buffer, pH 6.8. An equivalent amount of HCl/NaOH with respect to the total amount of phosphate in the buffer --> mmol of NaH2PO3 + mmol of NaH2PO4 = 50 mmoles. What would the pH of the above buffer

asked by Abba on May 18, 2015
46. ## English

1. Q1: What kind of work Orbis people have done so far: - They have traveled to underdeveloped countries to provide free eye surgery. 2. Q2: What kind of work have Orbis people done so far?: - They have traveled to underdeveloped countries to provide free

asked by rfvv on September 29, 2011
47. ## physics

4. Three point charges, +6.3 µC, +2.3 µC, and −3.4 µC, lie along the x-axis at 0 cm, 2.6 cm, and 5.2 cm, respectively. What is the force exerted on q1 by the other two charges? (To the right is positive.) The Coulomb constant is 8.99 × 109 N · m 2

asked by jamie on May 5, 2015
48. ## social studies

A 150 years ago nearly 3/4 of the working people in this country worked on farms. By the beginning of the 1980s only 1/40 did. Clearly automation "destroyed" many farms jobs. But if technology were really eliminating work, we would expect unemployment .

asked by Anon on September 8, 2013
49. ## Physics

I'm trying to prep for an exam, but I am struggling with the practice questions. I have answers for both questions, but I'm 95% sure they are incorrect. 1. Two students decide to run a race. The first student starts off at a constant speed of 5 m/s while

asked by Chelsea on June 19, 2011
50. ## Analytical chemistry

Below i wrote a few problems, i did them all but in the book i don't have results, so i don't know if i did them right or not. I would really appreciate if someone would go through the problems and tell me if i got the right results. If i made a mistake

asked by Gloria on August 3, 2013
51. ## Chemistry

I have this question which I believe I solved correctly, but I was wondering if someone could look it over to make sure? The question is... Assay for Vitamin A (a fat soluble vitamin) required an extraction step into ether. In this assay, 2.00 mL of serum

asked by Rob on January 11, 2013
52. ## Geography

#50. What were the factors that played a significant role in the collapse of Russian control over Eastern Europe? my answer: There were a few factors that played a significant role in the collapse of Russian control over Eastern Europe, corruption and

asked by y912f on February 19, 2010
53. ## physics

A commonly used method of fastening one part to another part is called "shrink fitting." A steel rod has a diameter of 2.0046 cm, and a flat plate contains a hole whose diameter is 2.0000 cm. The rod is cooled so that it just fits into the hole. When the

asked by krissy on November 17, 2015
54. ## Physics

if it takes 726 watts of power to move a mass 36 meters in 14 seeconds, what is the mass? i really need like, step by step help please? asap. thanks, michelle . physics - bobpursley, Saturday, November 20, 2010 at 4:06pm power= work/time=

asked by michelle quendarsv on November 20, 2010
55. ## physics

The block in the figure below lies on a horizontal frictionless surface and is attached to the free end of the spring, with a spring constant of 60 N/m. Initially, the spring is at its relaxed length and the block is stationary at position x = 0. Then an

asked by henry on October 25, 2009
56. ## Economics

Consider the production function Q = 20K 1/2 L 1/2. The firm operates in the short run with 100 units of capital. a. The firm’s short-run production function is Q = __________. c. The average product of labor function is AP = __________. d. The marginal

asked by Keshia on April 5, 2008
57. ## Accounting

Applying the interest allowance method, compute Julie's and Jennifer's share of net income if Julie invested \$40,000.and Jennifer invested \$24,000. At an 8% interest rate, with the remainder to be decided equally. Net income was \$10,000.

asked by Kathy on February 6, 2015
58. ## Literature

from Feast of Fear: Conversations with Stephen King: ..."And I get paid to show people the different perspective. That's why people pay writers and aritists. That's the only reason we're around. We're excess baggage. I have no skill that improves the

asked by mysterychicken on November 20, 2009
59. ## physics

1. How far (in meters) must a 600 kg pile driver fall, if it is to do 14000 J of work? 2. A spring whose spring constant is 150 N/m is compressed 0.800 m. What speed (in meters/second) can it give to a 0.600 kg ball when released? 3. A 550 N crate rests on

asked by Ricky on July 7, 2010
60. ## physics

1. How far (in meters) must a 600 kg pile driver fall, if it is to do 14000 J of work? 2. A spring whose spring constant is 150 N/m is compressed 0.800 m. What speed (in meters/second) can it give to a 0.600 kg ball when released? 3. A 550 N crate rests on

asked by Ricky on July 7, 2010
61. ## identify tenses

1. The dou had been given the second best time slot. a. past perfect in the passive voice b. past continuous in the passive voice c. an infinitive in the passive voice Answer a 2. The promotional poster was designed by Zach a. past continuous in the

asked by Jim Collum on June 12, 2013
62. ## Economics

Production Possibilities Curve (PPC) Worksheet All PPC’s Reflect Increasing Opportunity Costs For Numbers 1-10, think the change affects all markets. On all graphs, place “Consumer Goods” on the X Axis and place “Capital Goods” on the Y. 1)

asked by Ana on August 21, 2014
63. ## Math

I need help in seeing if I solved these inequality problems correctly. 1. A store sells two models of computers. Because of the demand, the store stocks at least twice as many units of model A as of model B. The costs to the store for the two models are

asked by Jamie on May 19, 2008
64. ## physics

I once was given a metal whiskey flask for being in my cousin’s wedding. When it got dented, I put in 1 gram of H2O (initially 21°C, just like the air filling the rest of the flask) and heated it up to boil the water. It popped the dent out. Assume the

asked by sumsum on March 20, 2014
65. ## physics

I once was given a metal whiskey flask for being in my cousin’s wedding. When it got dented, I put in 1 gram of H2O (initially 21°C, just like the air filling the rest of the flask) and heated it up to boil the water. It popped the dent out. Assume the

asked by mike on April 2, 2014
66. ## Physics

I once was given a metal whiskey flask for being in my cousin’s wedding. When it got dented, I put in 1 gram of H2O (initially 21°C, just like the air filling the rest of the flask) and heated it up to boil the water. It popped the dent out. Assume the

asked by SumSum on March 19, 2014
67. ## Discreet Mathematical Structures

Use proof by contraposition to prove the following statement: If A is the average of two positive real numbers then one of the two numbers is greater than or equal to A. Proof. Domain: positive real numbers P: A=(x+y)/2 Q: x is greater than or equal to A

asked by Anna on October 7, 2010
68. ## Chemistry

Methane reacts with water to form CO and H2 as follows: CH4(g)+H2O(g)=CO9g)+3H2(g) The value of Kp at 298 k for the reaction is 7.7 *10^24, calculate Kc. If you can please show the steps I would greatly appreciate it. Thank you

asked by craig on December 10, 2013
69. ## physics

Two sounds, one of 200 Hz and one of 194 Hz occur at the same time. What beat frequency do you hear? Show your calculations I'm not looking for someone to do my homework for me. I just don't know what formula to use to figure it out.

asked by Bethany on January 25, 2012
70. ## anatomy

a person with a tumor of the anterior that oversecretes ACTH into the blood stream would be expected to show signs of cushings disease. is this true or false

asked by Leslie on November 20, 2016
71. ## math

The lappens but three large sandwich wraps. nine people in all will be at the picnic show three differnt ways to cut the sandwiches so that each person gets an equal share

asked by Anonymous on September 25, 2012
72. ## computer graphic

This control on the Layers Palette in Photoshop changes the selected layer, allowing to show through from underneath. a See-through b transparency c saturation d color mode i am little confused between a and b...

asked by Anonymous on January 24, 2009
73. ## Algebra

If the trend for the growth in the median home value continues=d, what would be its value in the year 2007? show how you obtained your answer using the linear equation you found in part c).

asked by Jewel on June 7, 2012
74. ## Gr. 10 math again!

Factor by Grouping.Thanks Bob. PLEASE SHOW ME THE STEPS! 1.) 6x2-21xy+8xz-28yz just to make it clear,the 2 infront of -21 is actualli an Exponent 2. 2.) x2+5x+7x+35

asked by Nini on April 6, 2009
75. ## Finance

shawn bought a home for \$100,000. he put 20% down and obtained a mortguage for 30 years at 5 1/2%. what is the total cost of the loan? can you show me how this is worked out?

asked by linda on August 26, 2011
76. ## Com155

Use at least five adverbs and five adjectives to write a 150- to 300-word review of a movie, sporting event, musical performance, or television show

asked by Jacqui on September 28, 2010
77. ## Parametric derivatie help plz

Find the equation of the line tangent to the parametric curve define by x=cos2t and y=sin3t and t=pi/12 plz i don't no where to start from show working

asked by Collins on October 28, 2015
78. ## Math

A store owner bought comforters for x dollars and is marking them up 60 percent write two expressions that represent the selling price and show that they are equivalent.

asked by Jim on January 12, 2016
79. ## english

Could you show me some examples of sentences using pronouns desribing a recent interaction with a friend or family member about personal finance or credit cards.

asked by Jackie on April 14, 2011
80. ## chemistry

1.15g of acetylsalicylic ia recovered from an aspirim synthesis reaction that began with 2g of salicylic acid, what would be the percentage yield for the preparation? show your computations

asked by Rogylyn on September 1, 2014
81. ## Maths

The first year after 1999 which is the product of three consecutive integers is: 2004 2040 2046 2052 2184 Please show working out and choose either one of these years

asked by Babiinoob on April 26, 2011
82. ## Calculus

Prove that the function defined by: f(x)={1 if x is rational, 0 if x is irrational is not integrable on [0,1]. Show that no matter how small the norm of the partition, ||P||, the Riemann sum can be made to have value either 0 or 1.

asked by Jacob on April 6, 2017
83. ## english

• Use at least five adverbs and five adjectives to write a 150- to 300-word review of a movie, sporting event, musical performance, or television show

asked by heather on January 23, 2011
84. ## science

Grapic organizer.show details that support this main ideals.thermal energy moves through solids liquid, gases and space

asked by anonymous on December 3, 2012
85. ## Vectors - Maths

Given that a = i - j + 2k, b = i + 2j + mk and c = 3i + nj + k, are linearly dependent. Express m in terms of n in simplest fraction form. Answer: m = (2n-9)/(n+3) Can someone pls show their working and explanation? Thx a lot ~C~

asked by C on January 5, 2017
86. ## math

sunita baked a round cake for 11of her friends.she wants to divide it into 11 pieces with only 4 cuts. it is not important that the sizes of each piece should be the same how can she do that ? show it in diagram

asked by NAHID NOORI on June 13, 2012
87. ## math

show me how do find volume i know it is base x height but then what? example 20 cm wide 17cm high and how do i bring it to nearest cubic unit. I am in 6th grade. thank you

asked by polly on January 22, 2009
88. ## Math

A test has 125 items. Each correct answer earns 1point and 65% is a passing grade. If you get 42 answers wrong will you pass? Show working

asked by Devon on February 12, 2012
89. ## maths

The line segment connecting A(-18,8) and B(-10,-8) is divided in the ratio 1:3 by point C. The coordinates of C are... Please show your working and thx for taking your time to answer this question.

asked by Sam on December 23, 2016
90. ## Physics

A 500.0 g metal block absorbs 3.25 × 103 J of heat to raise its temperature by 50.0 K. What is the substance? Please show steps because I have several problems like this and then I can see where I am goibg wrong

asked by Pat on March 12, 2012
91. ## chemistry

1) Aluminum Chloride- Red- PH: 4.0 2) Sodium Carbonate - Violet- PH: 9.5 Ammonium Acetate - Yellow - PH: 6.5 the question is: explanation with equation to show hydrolysis Could you please help me thank you.

asked by fenerbahce on July 12, 2012
92. ## English

I'm writing the sentence "This TV show shows examples of behavior that can harm--" and then I list a bunch of things. Should it be a solid dash or two dashes like I wrote? Thank you.

asked by Ekaterina on June 11, 2009
93. ## kuai

could you show me how to set ,y problems up so I have a chance at figuring them out. I have spent countless hours on the two statistic questions I posted and am still at square one. Please, you seem to know what you are doing and I'm willing to learn.

asked by Amy on November 4, 2013
94. ## Chemistry

Draw the best Lewis structure for NCCH2C(O)CH2CHO, a neutral molecule. Show all atoms, bonds, lone pairs, and formal charges.

asked by Cathy on September 11, 2009
95. ## Calc

Evaluate the limit if it exists, otherwise, write ∞,-∞ or DNE as appropriate. (you may not use the L'Hospital Rule) lim e^cosx \squareroot(tan((3)/(4)x)+10) x-> π Please show steps I am very confused!

asked by Clay on September 9, 2018
96. ## chemistry

Write a balanced chemical reaction to show the dissociation of solid magnesium chloride (MgCl2) in water, indicate states of the reactants and products

asked by Jessica on October 15, 2010
97. ## algebra

write in simplest form 1/10 / 1/4 they way you typed the problem illustrates well why it is so important to use brackets to show the precise order of operation. I will assume you meant (1/10) ÷ (1/4), if so then it would be (1/10)(4/1) =2/5

asked by Tony on April 25, 2007
98. ## physics

describe an expirement to determine the specific heat capacity of the metal . state the precaution that should be taken and show how the results in calculated from the measurement made?

asked by poppy👌🤔 on May 6, 2019
99. ## physics

A car traveling along a level road uniformly increases its speed from rest to 28m/s in 8.0s. Show that it travels a distance of 112m in this time.

asked by Daisha on February 12, 2011
100. ## physics HELP

A block a mass of .113 kg is slid horizontally with a acceleration of 2.612 m/s^2 What is the kinectic force and the coefficient of friction. Please show the steps in getting these answers,

asked by anthony on November 5, 2012