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 263
1. science

In 91% (by volume) isopropyl alcohol (a large [compared to water], flammable molecule) solution, there are only two substances: the alcohol, and water. So when I poured 50 mL of 91% isopropyl alcohol into a graduated cylinder, how many milliliters were

asked by edward on February 6, 2012
2. CHEMISTRY........

i TRIED TO DO IT, BUT MY ANSWERES ARE WRONG. Please show work and explain. 1. If 29.0 L of methane, CH4, undergoes complete combustion at 0.961 atm and 140°C, how many liters of each product would be present at the same temperature and pressure? 2 If air

asked by Anonymous on October 10, 2013
3. chemistry

Consider the following reagents: zinc, copper, mercury (density: 13.6 g/mL), silver nitrate solution, nitric acid solution. a. Given a 500-mL Erlenmeyer flask and a balloon can you combine two or more of the foregoing reagents to initiate a chemical

asked by kate on July 7, 2015
4. Math

A business woman intends to rent a car for a 3 day business trip. The rental is \$65 a day and \$.15 per mile (plan 1) or \$90 a day with unlimited mileage (plan 2). She is not sure how many miles she will drive but estimates that it will be between 400 and

asked by Anonymous on December 10, 2015

5. Volume is an object is how much ________ it takes up. 6. When we measure the temperature of an object in the metric system, we use _______ 7. Scientist say that measuring mass of an object means measuring how much matter something has. What is matter?

asked by Joy on September 29, 2008
6. CVP Analysis - Business Math

Engineering estimates show that the variable cost of manufacturing a new product will be \$35 per unit. Based on market research, the selling price of the product is to be \$120 per unit and variable selling expense is expected to be \$15 per unit. The fixed

asked by Steph on October 16, 2012
7. Chemisty

In the titration of total acid with sodium hydroxide, NaOH, it was determined that 36.03mL of 0.0980M NaOH was needed to neutralize all the acid in a 10.0mL aliquot of a powdered drink mix solution. In a second titration, it was determined that were 1.45 x

asked by Mandy on October 22, 2014
8. math

The Hamilton/Vinton Method The Hamilton/Vinton Method sets the divisor as the proportion of the total population per house seat. After each state's population is divided by the divisor, the whole number of the quotient is kept and the fraction dropped.

asked by christopher on February 10, 2016
9. Physics

A hoop of radius 1.4 m and mass 11.5 kg has a small ball stuck to its inside surface. The ball has a radius of one quarter that of the hoop, and twice the hoop’s mass. The hoop may roll freely, without slipping. Similarly, the ball may roll along the

asked by Amber on April 22, 2016
10. reimbutsement

services under the outpatient prospective system are paid based on?

asked by karen on February 22, 2010
11. Informaton Technology

How does BIOS optimisation affect the performance of the computer system, and how it is done?

asked by Sherzz on May 14, 2016

how is human information system maintainede at a reserve bank?

asked by jasnita on April 20, 2010
13. ap chemistry

in which type of process does the H of a system decrease? endothermic or exothermic

asked by Sarah on September 24, 2010
14. algebra

what is the solutionof the following linear system? 2x + y = -1 x + 1/2y =-1/2 a) (2,1) b) none c) (1/2,-2) d) infinite number of solutions

asked by kiddo on May 6, 2010
15. Algebra 2

Which matrix represents the system of equations below? -10x-9y+13z=12 8x-7y-5z=15 5x+4y-6z=-12 a. -10,-9,13 8,-7,-5 5,4,-6 b.-10,-9,13 8,7,5 4,4,-6 c.-10,8,5 -9,-7,4 13,5,-6 d. 10,8,5 9,-7,4 13,5,-6

asked by Maria on January 9, 2014
16. algebra

Can someone please explain system of linear inequalities by graphing this one problem x-2y1.

asked by Joi on September 16, 2007
17. world geography

in a traditional economic system which type of good is most often produced?

asked by john on December 12, 2011
18. Biology

What is the location and effect of waves of contraction in the digestive system.

asked by Michelle on October 11, 2014
19. Science/Biology

the vessels that contain the largest volume in the vascular system are? I think Arteries

asked by Anonymous on March 1, 2016
20. math

Determine whether the system of equation is in row-echelon form. x-y+3z=-11 y+8z=-12 z=-2

asked by julia on June 17, 2014
21. Math

Is octaland hexadecimal numbering are the number system that is used by computers?

asked by Jnr John on July 21, 2013
22. science

Can anybody plz explain to me how the digestive system works for all mammals?

asked by Logan on June 2, 2008
23. Religion

what are the advantage of monarchy system that israel wanted to have "just like the other nations" ?

asked by tim on September 21, 2015
24. algebra2

classify each system and determine the number of solutions: 5x-y=-3 and 15x-3y=-9

asked by rae on October 18, 2015
25. Algebra

Write a matrix equation equivalent to the system of equations. 7x - 8y = -9 -2x - 2y = -2

asked by lue on July 30, 2018

What is one strength and one weakness seen in the current U.S. health care system?

asked by mary on August 9, 2009
27. biology

Which of the following is an accessory organ of the integumentary system? Sebaceous gland

asked by Jackyln on March 25, 2009
28. Philosphy

What system used in schools is the modern version of virtue ethics?

asked by Maisey on July 18, 2018
29. Science

Which of the following ets of terms could be used in a deseription of the peripheral nervous system?

asked by Kayla on December 12, 2013
30. Economics

Why does the US need a single banking system to help organize its financial structure?

asked by Gee on May 13, 2009
31. Physica

The tension of the string of a system as shown m1=m2=5.00kg in the figure is

asked by Q12 on July 15, 2012
32. geography

What is the Earth System that includes the Continental and Oceanic crust?

asked by Qwynne on September 21, 2009
33. Math

---LINEAR TRI-SYSTEM--- Please explain how to do this problem because I already have the answer as (0,4,-2) 5x+y-z=6 x+y+z=2 3x+y=4

asked by Sean on August 15, 2009
34. biology

why do biologists use a classification system to study the diversity of life

asked by sami on February 24, 2009
35. natural science/bio

flow diagram of circulatory and respiratory system combined

asked by Anonymous on March 9, 2017
36. Socialsl studies

Who created a caste system that separated Indians into groups?

asked by Yaqub on January 25, 2016
37. Philosphy

What system used in schools is the modern version of virtue ethics?

asked by Maria on July 20, 2018
38. science

ok my summer homework is to explain how the si system is used in the scienetific community. HELP!

asked by bobbie on August 12, 2009
39. A level law

asked by elizabeth on March 29, 2011
40. Algebra

Explain how to use a graph to determine the number of solutions of a system?

asked by Mary on March 8, 2011
41. Math

I'm struggling with system applications word problems. Can some please explain on how to do it? Thanks

asked by Anonymous on February 2, 2014
42. Science

The rocks which float in space within the solar system are called?

asked by Rael swan on October 1, 2010
43. History

asked by John on November 14, 2011
44. economics

Which economic system works best when there is a crisis of epic proportion?

asked by mary on September 3, 2010
45. Biology

Explian how one-way flow of blood is maintained in the circulatory system.

asked by jake on November 24, 2009
46. social studies/ history

Oh!!!! Ms.Sue, the question said "Explain the Iroquoise pollitical system".

asked by casey on May 19, 2012
47. MaTh..

Determine whether the system of equations is in row-echelon form. x-y+3z=-11 y+8z=-12 z=-2

asked by Anonymous on June 17, 2014
48. Computers

List 10 softwares or programs that can be found on a computer system.

asked by Sasha on February 4, 2012
49. algebra 1

desceibe a situation or provide an example of a independent/consistent system?

asked by pam on August 13, 2009
50. geometry

x is less than y and 20 less than z. write a system of equations and find the measures of the three angles

asked by davonte on November 7, 2011
51. science

what animals don't have a circulatory system. please answer fast thank you

asked by sally on June 17, 2012
52. HHS 205

Can someone assist me in determining The Elements That Should Be Present In An Appraisal System?

asked by Me on April 25, 2008
53. algebra 2nd try

I need to simplify this 2/∛49 . I figured it out to be (2∛((49)^2))/49 but the system I added my answer to says this is incorrect. Please help me! Thanks anyone.

asked by sally on March 23, 2013
54. algebra1

wihtout graphing, is this system independent, dependent, or incosistent? -2x-y=9 3x-4y=-8

asked by jenika on May 17, 2012
55. social studies

I have to tell about the society of the Iroquois people. Does that include their system of government as well?

asked by chooey on June 7, 2010
56. science

does to skeletal system send signals to yuor brain

asked by krystina on November 10, 2016
57. tourism

What's the difference between a marketing consortia and a hotel refferal system?

asked by Zoe on October 10, 2009
58. SCIENCE

ARE ANY OF THE 9 PLANETS WITHIN OUR SOLAR SYSTEM A LIGHT YEAR OR MORE AWAY FROM EARTH?

asked by Chelsee on February 7, 2008
59. medical

why insurance companies need so much documentation and the reimbursement system is so complex?

asked by sandra on July 29, 2009
60. TV Production

is a studio control room the most basic television system?

asked by Willy Wonka on February 13, 2012
61. chemistry

is molar enthalpy affected if the system is a solid rather than a liquid

asked by Anonymous on April 21, 2010
62. Math

Determine the ordered pair that solves the linear system 3(x – 1) – 2(y – 3) = 0 and 3(x + 4) – 4(y – 1) – 1 = 0.

asked by clary on May 27, 2012
63. science

Describe how a scientist using the phenic system would classify an organism.

asked by kathy on January 15, 2012
64. Math

How many solutions does a consistent and dependent system of linear equations have?

asked by Nancy on June 3, 2008
65. algebra

without graphing classify each system as independent, dependent, or inconsistent. -2x-y=9 3x-4y=-8

asked by wesley on January 7, 2009
66. Law

Describe the role of the court in Australia's legal system.

asked by Help Needed. on April 4, 2015
67. biology

What are three points of evidence that scientists used to develp the three-domain system?

asked by Kal on September 2, 2009
68. Psychology

Does someone know where I can get a brain and nervous system diagram that is labeled well. i can not find one?

asked by SinnerSaved on January 31, 2009
69. Science

What part of the circulatory system moves the blood through your body?

asked by Kyle on October 16, 2013

in the feudal system of Europe, lords owed their loyalty to the ???

asked by tim on August 23, 2010
71. social studies

what would a clear definition of a presidential democratic governmental system?

asked by sean on March 1, 2010
72. math

Write the system of equations corresponding to the augmented matrix using the variables x, y, and z. 0 10 6 –5 3 8 – 9 7 – 5 0 – 3 –4

asked by Anonymous on March 7, 2011
73. biology

explain how the hiv virus destroys the immune system.

asked by andy on March 13, 2012
74. U.S. Government and Politics

Can anyone help me on this question?? Describe how our Federalist system works in America. /:)

asked by Mary Ann on October 8, 2013
75. Economics

An economic system where there is little freedon of choice? Socialism is correct, right. Thanks

asked by Sue on September 23, 2009
76. Civics

describe how the current federal court system originated

asked by Alex on May 18, 2010
77. Math - number of solution

Determine the number of solutions for the system without solving. 3x+12y=-27 4x+2y=34

asked by Shaila on August 28, 2010
78. Physics

what is the amount of gravity im m/s on each planet in the solar system. I need to know by Wednesday. Thanks

asked by Rebecca on March 23, 2008
79. Automation

write a note on material handling system design

80. space science

how long does it take for our solar system to rotate around the Milky Way galaxy?

asked by Anonymous on November 19, 2007
81. Social Studies

How did the headright system promot British migration to the new world?

asked by Stephanie on September 4, 2007
82. Math

If a point of a three-dimensional system is labeled with the coordinates (1, 2, -2) what is the Z coordinate? a. 1 b. -1 c. 2 d. -2 This one I am not sure but I think it is d.

asked by Diane on September 23, 2008
83. help with my science test 7th grade connection

Which of the following is an example of a model. A.the solar system B.a globe C.a planet D.a padlock

asked by Angle on September 15, 2017
84. Social Studies

Explain the Chinese merit system in complete sentences.

asked by hi on March 30, 2019
85. governernment

explain the role of government in a free enterprise system?

asked by jerson on March 5, 2009
86. math

Graph the equation in the rectangular coordinate system. -5y = -40 How should the line be going?

asked by re on February 9, 2010
87. health

what are 9 parts of the female and male reproductive system that are either exactly the same of similar

asked by Anonymous on February 21, 2011
88. economics

describe the economic system most common to primitive societies

asked by lisa on May 27, 2008
89. question

is breast cancer a part of a disorder of the endocrine system?

asked by steve on November 13, 2011
90. science

what will form a giant cloud that formed the solar system

asked by Star on October 25, 2018
91. Algebra

Need help solving the system of inequalities and equations graphically for this problem. Please help! 6y=9(x-6) 3(2y+5x)=-6

asked by George on April 3, 2015
92. Goverment

asked by Angelflora on November 12, 2016
93. african american hist.

what were the origins of the indentured system? how did it evolve into plantation slavery?

asked by mack on January 21, 2008
94. Biology 20

Which blood cell is able to reproduce inside the circulatory system and why?

asked by Laurie on June 4, 2008
95. Social Studies

What major changes from a pure capitalistic system did the New Deal involve?

asked by Anonymous on September 30, 2008
96. Math

Find a system of linear equations corresponding to the following augmented matrices: (a) 2 0 |0 3 −4 |0 0 1 |1 (b) 3 0 −2 |5 7 1 4 |−3 0 −2 1 |7 (c) 7 2 1 −3 |5 1 2 4 0 |1 (d) 1 0 0 0 |7 0 1 0 0 |−2 0 0 1 0 |3 0 0 0 1 |4

asked by Matt on October 25, 2011
97. Political Science

Does the representation system in the U.S. Senate still make sense today? Why or why not?

asked by Daniel on August 28, 2015
98. Civics

What role do precedents play in our legal system? Help would be appreciated!! :-)

asked by Unknown on January 30, 2014
99. precalculus

write the system of equations in row-echelon form 2x+4y+z=-4 2x-4y+6z=13 4x-2y+z=6

asked by Anonymous on November 29, 2016
100. cjs200

How would this affect the structure of the criminal justice system as we see it today?

asked by Anonymous on February 11, 2010