# 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

91,330 questions, page 305
1. ## math

Last year, a property managerbought five identical snow shovels and six identical bags of salt. The total ost of the snow shovels was \$172.50, before tax, and each bag of salt cost \$6.20,before tax. This year, the property manager bought two identical snow

asked by sree on August 30, 2017
2. ## math

Last year, a property managerbought five identical snow shovels and six identical bags of salt. The total ost of the snow shovels was 4172.50, before tax, and each bag of salt cost 46.20,before tax. This year, the property manager bought two identical snow

asked by sai on August 30, 2017
3. ## math (pls help)

Amelia's parents and grand parents have both opened savings accounts to save for Amelia's education this year. Amelia's parents' savings account earned 5% interest and her grandparents account earned 8% interest. This year the two savings accounts have

asked by Bill on January 23, 2007
4. ## math

Can you use a proportion to solve any ratio problem? If you answer is yes, which ratio WOULD you NOT use a proportion to solve. If you answer is no, which ratio problem COULD you Not use a proportion to solve?

asked by Kasia Neil on September 30, 2010
5. ## math

Can you use a proportion to solve any ratio problem? If your answer is yes, which ratio problem would you not use a proportion to solve? if your answer is no, which ratio problem would you be able to solve?

asked by samantha on September 28, 2008
6. ## Chemsitry

The Ksp of PbBr2 is 6.60× 10^–6. What is the molar solubility of PbBr2 in pure water? What is the molar solubility of PbBr2 in 0.500 M KBr solution? What is the molar solubility of PbBr2 in a 0.500 M Pb(NO3)2 solution?

asked by Anon on March 17, 2013
7. ## Physics Last Question HEEEELLLPPP !

#1 The internal energy of the gas in a gasoline engine’s cylinder decreases by 295 J. If 47.0 J of work is done by the gas, how much energy is transferred as heat? #2 If an ideal gas does work on its surroundings: a. The internal energy of the gas

asked by Jarrid on December 12, 2010
8. ## Science

Which sphere of the Earth system contains nearly all of Earth's mass? A. the geosphere B. the atmosphere C. the biosphere D. the hydrosphere

asked by Deazzy on April 13, 2015
9. ## health care

How does the system of health care provision in the U.S. support goals of public health? Provide an example.

asked by Ann on May 25, 2013
10. ## home economics

a system of government in which powers are divided between a central government and several regional goverments is call?

asked by deajia on April 28, 2010
11. ## Chemistry

A system is represented by the following equation: 2A(aq) + B(aq) --> 3C(aq) At equilibrium, [C]=0.6 M. Calculate the value of K if initially 1 mol of A and 2 mol of B were placed in a 1 L flask.

asked by Sandra on May 11, 2012
12. ## Economics

Pick one MARKET in which the price system does not produce an equitable price and quantity of output.

asked by TSK on September 19, 2010
13. ## algebra

Suppose you want to add a sprinkler system, and the location of one section of the sprinkler line can be described by the equation .

asked by frustrated on February 15, 2008
14. ## Pyhsical Science

What is a system of knowledge and the methods used to find that knowledge? A. science B. technology C. measurement D. curiosity I think it's D.

asked by Brandon on August 27, 2013
15. ## Texas Government

The federal income tax in the U.S. is a benefit-based system. a. yes b. no I would say yes? Is it because they gain benefit from the taxes ?

asked by HM on November 23, 2011
16. ## algebra

The sum of two numbers is 30 and their difference is 2. Find the two numbers by writing and solving a system of equations.

asked by billy on March 4, 2014
17. ## Algebra

The sum of two numbers is 30 and their difference is 2. Find the two numbers by writing and solving a system of equations.

asked by KevinJ on February 27, 2014
18. ## math

Suppose you want to add a sprinkler system, and the location of one section of the sprinkler line can be described by the equation. Y= -1/2x-4 x y (x,y) -1 -2 -4 2 8

asked by scooby9132002 on May 31, 2009
19. ## ss

what is a federal system of government? Basically...it's a government with central powers. Like, it's what we have in the U.S., with the 3 main branches.

asked by Jackie on December 13, 2006
20. ## math

Suppose you want to add a sprinkler system, and the location of one section of the sprinkler line can be described by the equation

asked by Anonymous on December 7, 2009
21. ## Math

"A system of equations can have two answers beside an actual set of coordinates. What are they?" Would the two other answers be graphing and ratio, or ..

asked by Anonymous on May 21, 2015
22. ## Civics

In the federal system, how is sovereign power divided among state and federal laws and constitutions?

asked by Bob on November 4, 2009
23. ## Chemistry

26.5 kJ of heat is added to 5.44 g of ice at 0 C. What phase(s) are present and what is the temperature of the system after all the heat is absorbed?

asked by Polina on October 23, 2014
24. ## Oceanography

What is OIL/RIG? What is its importance in the nitrogen cycle? How does nitrogen enter a marine system?

asked by Malyssa on March 13, 2008
25. ## Science

Metric System How do I know when to multiply and when to divide when converting to metric or from? Sample- 450km=______mi

asked by Elizabeth on September 17, 2007
26. ## Algebra

Find the number of solutions for this system of equations. 3x + 5y = 20 -2x +5y = 20 How can I do this (and for other systems of equations) without taking all day? Thanks!

asked by Bella on February 26, 2009
27. ## Physics

A 50kg mass and a 85kg mass are hung over a frictionless pulley what is the acceleration of the system

asked by Sam on May 26, 2014
28. ## Medical Billing & Coding

The ICD-PCS system uses a tool coders have never used before. What is it? a. Incisional biopsy b. excisional biopsy

asked by Arlene on October 31, 2013
29. ## algebra ll

the first equation of the system is mutiplied by 4, by what number would you mutiply the second equation to eliminate the y variable by adding? first: 2x+5y=16 second:8x - 4y =10 i got 2 0r 5 im not sure which one

asked by Anonymous, on August 15, 2008
30. ## college

I am stuck with this question. Which system would one believe in and more effective control model or due process model.

asked by DJ on November 15, 2008
31. ## foundation of ht ecriminal justice system

the crime control model and the due process model. Which aspect of the system do you believe is more effective

asked by sandy on June 26, 2008
32. ## Algebra II

Describe the system 6x-2y=10 and 9x-3y=8 as consistent and independent, consistent and dependent, or inconsistent. Explain. I don't know how to do this one

asked by Jon on December 16, 2007
33. ## Math

Explain why the digits in a place value system with base, b, are 0,1,... b-1 and why no digits for numbers greater than b-1 are needed

asked by Jessica on September 12, 2012
34. ## anatomy'

disease is an unhealthy state of a. organ system b.the entire body c. an organ d.all are true

asked by jaz on September 19, 2011
35. ## world history

explain how the alliance system involved countries with no other national security interest involved.

asked by zelda on January 13, 2011
36. ## science

Locate the rivers in Central Nevada. Why are these rivers not part of a larger river system?

asked by Anonymous on February 9, 2009
37. ## Science

I need to make a story about digestive system and the story need to begin with a piece of food..plsssss help

asked by Eunji on October 18, 2016
38. ## physics

The two conditions for equilibrium often result in a system of equations such as F1 + F2 = 44.0 N and 3.00F1 − 8.00F2 = 0. find F1 and find F2

asked by alba on March 6, 2015
39. ## Health

How does the system of health care provision in the U.S. support the goals of public health? Please provide an example.

asked by DonnaK on May 3, 2012
40. ## Science

I need to make a story about digestive system and the story need to begin with a piece of food..plsssss help

asked by Eunji on October 18, 2016
41. ## chemistry

Calculate the pH of a buffer system composed of 0.880 M C5H5N and 0.660 M C5H5NHNO3. The Kb for C5H5N is 1.70 x 10^-9.

asked by darryl on March 18, 2014
42. ## biology

If a microscope has a 40× objective lens in place and a 15× eyepiece lens, the magnification of the system under these conditions is

asked by oihln on August 6, 2014
43. ## Bio

What digestive enzymes does the pancreas produce (pertaining to the digestive system only)? The only one I know is Pancreatic Amylase. Are there any more?

asked by Lena on November 28, 2008
44. ## Math(Please check! Thank you!!)

metric system conversions 1)3.68kg = ? g (3.68 kg) (10^-3 / 1kg) = 3.68 x 10^-2 g 2) 568cm = ? m (568cm) (1 m /100cm) = 5.68 m Are these correct?

asked by Hannah on September 11, 2011
45. ## MATH

Explain why the digits in a place value system with base, b, are 0,1,... b-1 and why no digits for numbers greater than b-1 are needed

asked by TAY on September 12, 2014
46. ## Math/Algebra

y^2+6+2(y^2+5) My answer is 3y^2+16 (simplifying) but the hawkes learning system won't accept this answer. Am I missing something?

asked by Laurie on September 4, 2012
47. ## Biology

Why is damage to skin or muscle usually easily repaired, but damage to the brain or nervous system is not? Thanks.

asked by Bee on October 7, 2010
48. ## physics

A 18 kg object and a 6 kg object are hanging over a frictionless pulley. What is the acceleration of the system to the nearest tenth?

asked by JUan on November 9, 2009
49. ## 5-6 th grade self contained spec ed class

HELP! NExt year I am the 5th and 6th grade self contained Spec. Ed teacher. I have ONE 5th grader and about 10 6th graders...HOw do I teache rboth curriculums in one day??Particularily Soc. Studies and Science?? Thanks Please check with your principal,

asked by Nancy on June 27, 2007
50. ## English

Which phrase from Marge Piercy's "To Be Use" best illustrates the poem's celebratory tone toward hard work? I want to be with people who submerge in the task, who go into the fields to harvest and work in a row and pass the bags along, who are not parlor

asked by Kaai97 on June 13, 2016
51. ## PHysics!!

Starting from rest at a height equal to the radius of the circular track, a block of mass 25 kg slides down a quarter circular track under the influence of gravity with friction present (of coefficient μ). The radius of the track is 15 m. The acceleration

asked by Bob on May 8, 2012
52. ## chemistry

What is the composition of a methanol () – propanol () solution that has a vapor pressure of 121 torr at 40°C? At 40°C, the vapor pressures of pure methanol and pure propanol are 303 and 44.6 torr, respectively. Assume the solution is ideal. Mole

asked by savanna on October 5, 2016
53. ## human resources

o Name three selection tools that you would consider using to hire a police officer. o Choose what you think is the best selection tool or combination of selection tools in choosing the best candidate. o Detail which interview method would be most

asked by Lacy on May 2, 2011
54. ## English

a persuasive article starting with an event like "On October 18, 1990, a young man waked into St. Paul's Cathedral in London England....." Is this an effective method to interest the reader. Also, is starting a persuasive article or essay with a historical

asked by Amy on October 8, 2014
55. ## chemistry

Using the PM3 semiempirical method in HyperChem, treat planar napthalene. First build the molecule, choose SemiEmpirical methods and PM3, and perform a Geometry Optimization. Look in the "Compute>Orbitals" menu to determine the energies of the HOMO and

asked by muneer on April 22, 2013
56. ## Demand Planing and Forecasting

A retail outlet deals with a wide range of gift articles (ranging in unit value from Rs 100 to Rs 1000). Identify the various factors influencing the demand and sales for this range of gift articles. What kind of data inputs will be useful for this

asked by Omprakash on April 22, 2013
57. ## History

The Code Talkers were members of which Native American tribe? Apache Hopi Navajo******** Pueblo 2. Why was the Code Talkers' code so hard to break? It was based on a language that lacked an alphabet and was hard to learn. The people who developed it came

asked by Patty on September 10, 2015
58. ## Finance

Please answer these questions: 1. After a protracted legal case, Joe won a settlement that will pay him \$11,000 each year at the end of the year for the next ten years. If the market interest rates are currently 5%, exactly how much should the court invest

asked by Ecs on November 9, 2009
59. ## English

Hello If you had a topic "Murphy s law" and you had to work on it in the classroom for 90 minutes, what would you do? I have a text on Murphy s law, I thought to teach the children time clauses. My idea: work on the text for 45 minutes and then introduce

asked by Mark on February 5, 2012
60. ## Math

The average of X numbers is 15. If the sum of the X numbers is 90, what is the value of X? A)5, B)6, C)8, D)15 or E)75 What is the correct answer and how do you set up the equation? The answer is b)6 because if there are 15 average numbers and the sum is

asked by George on February 25, 2007
61. ## Social Studies (Check, Please!)

1. What events in Roosevelt's life shaped his ideas and characters? A: Roosevelt's marrying his wife (Eleanor Roosevelt), winning a seat in the New York State Senate, becoming assistant secretary of the navy, suffering from polio, and being elected as the

asked by Victoria on November 28, 2015
62. ## english

I need someone's help on editing my paragraph.... OPC is a great place for an athlete because OPC offers many options for the athletes and don’t forget about their countless banners. OPC as school give the athlete’s the opportunity to choose from a

asked by Jim on March 30, 2015
63. ## CHEM

A gaseous hydrocarbon (an organic compound consisting of C & H) weighing 0.232g occupies a volume of 102mL at 23 degrees Celcius and 749mmHg. Calculate the molar mass and identify the compound. The compound is: a)C2H4 b)C3H6 c)C4H8 d)C5H10 e)C6H12 How is

asked by K on December 13, 2006
64. ## Chemistry

LiI(s) → Li+(aq) + I‾ (aq) Solid LiI dissolves as shown in the above equation. A 8.00 g sample of LiI was dissolved in 57.5 g of water. The initial temperature of the water was 21.40°C. After the compound dissolved, the temperature of the water was

asked by Sug on February 10, 2010
65. ## Chemistry

1. A student uses 6M HCl solution contaminated with Al(NO3)3 to wash the nichrome wire in between recordings of emission spectra for the different known and unknown metal ion solutions. The emission energies for the aluminum are 3.90x10^-19 J/atom,

asked by Sandy on February 16, 2014
66. ## criminal law/ college

I need to identify the bail sytem beneficiaries and what are some recommendations for the future of the bail system

asked by nette28 on May 25, 2010
67. ## science

if you weigh 100 pounds on earth than how much would you weigh on each other planet in our solar system

asked by jack on February 14, 2011
68. ## math

Given: ∆PQR, m∠R = 90° m∠PQR = 75° M ∈ PR , MP = 18 m∠MQR = 60° Find: RQ M is on segment PR 9sqrt3 is wrong(the system did not take it)

asked by Grace on March 14, 2017
69. ## math

FIND THE MODULO CLASS TO WHICH THE NUMBER BELONGS FOR THE GIVEN MODULO SYSTEM 53 mod 12

asked by nichole on June 12, 2011
70. ## math

3x+2y = 0 x-2y = 0 If the system has infinitely many solutions, express your answer in the form x=x and y as a function of x Your answer is x=? y=?

asked by Jillian on September 3, 2009
71. ## anatomy

the nervous system is comprised of what 2 tissue types? I have connective tissue but I don't know the other one

asked by destiny on January 24, 2012
72. ## Social Studies

What was the system of economy for the Plateau, Northeast Woodland and Southeast Woodland Indians? Thank you

asked by Scott on September 27, 2007
73. ## History

Do you think that the United States will ever revert to a system where the states are more important than the national government?

asked by Teri on October 24, 2008
74. ## Math

Consider this system of linear equations: 22x − y = -23 (equation 1) 11x + 12y = 1 (equation 2)

asked by Kaleb on July 11, 2017
75. ## health projects

i need ideas how to make a reproductive system of the female? i don't have no clue how to make it

asked by joanna on September 2, 2011

Compare the American legal system to the international legal environment of business.

asked by Joseph on May 23, 2007
77. ## square roots

Describe the Number systems used in mathematics with the use of subsets of the real number system.

asked by lisa on November 20, 2012
78. ## CHM 152

For the system 2A (g) + B( g) = 2C (g), if the initial concentration of pure C is 1.00 M, the equilibrium concentration is 0.40 M. What is the value of Kc? Choose one answer. a. 5.0 b. 0.45 c. 0.67 d. 2.2 e. 1.5

asked by AMI on March 26, 2010
79. ## ENGLISH

In the Handmaid's Tale by Margret Atwood, does the Handmaid system actually repopulate the state?

asked by lena on November 12, 2009
80. ## Social studies

compare the political system and the political philosophies of China to those ofEgypt and Mesopotamia?

asked by Maria on February 8, 2012
81. ## physics

When heat transfers into a system, is the energy stored as heat? Explain briefly.

82. ## Chemistry

What is the pH of a buffer system that contains 0.18M NH4+ and 0.14M NH3? The pKa of NH4+ is 9.25.

asked by Aaron on April 18, 2013
83. ## Science

WHICH SYSTEM HAS THE GREATEST TIDAL EFFECT? EARTH-SUN OR EARTH-MOON?

asked by Blake on May 5, 2015
84. ## Operating Systems

How would you search the entire file system for a file named today.odt?

asked by Anonymous on October 21, 2009
85. ## Discount Math

The retail price of a gaming system is \$270. What is the wholesale price? (There is an 80%) markup.

asked by Kim on March 31, 2019
86. ## life orientation

name the three different systems of media ownership that can be found worldwide.name a country where each system can be found.

asked by chuene on February 17, 2013
87. ## life orientation

Name 3 different systems of media ownership that can be found worlwide.Name a country where each system can be found

asked by Anonymous on March 10, 2013

find the value of 60 joule per minute on a system which has 10 cm,100gm, and 1 minute as fundamental units.

asked by help on November 8, 2010
89. ## Social studies

Name the tenants of a democratic society, or describe the belief system of democratic societies

asked by Stephanie on February 19, 2012
90. ## chemistry

How will the removal of some HOCl(g) from the following system affect the equilibrium? H2O(g) + Cl2O(g) -----> HOCl(g)

asked by Jessica on March 31, 2008
91. ## Health Care

Do you think that there is a difference if an EMR system is put into a small facility or a big facility?

asked by Lori on November 3, 2010
92. ## science

If I mix 300g of reactant A with 100g of reactant B in a close system how much will it weigh

asked by donna on March 13, 2016
93. ## algebra

Example 2: The difference of two numbers is 16. The first number is 4 less than twice the second number. Set up this system that describes the situation.

asked by Tina on November 3, 2012
94. ## Physics

A 24.5-kg child is 11.6 m from an 85.5-kg adult. Where is the center of mass of this system? Take the origin at the position of the child.

asked by Plase help soon on October 1, 2016
95. ## Psychology

What possible insight into our visual system does visual illusions provide? What are perceptual constancies?

asked by Kayden Ryan Smith on November 29, 2007
96. ## Social Studies

Explain why the capitalist system developed in Europe. (Explain In Paragraph plz)

asked by name:unknown on October 25, 2018
97. ## chemistry

What is the solubility of AgCl when it is in a solution of 0.15 M NaCl? (AgCl has Ksp = 1.8 x 10-10.) Make a reaction table. Include rows for initial concentration, change in concentration, and equilibrium concentration. Write down the equation for the Ksp

asked by Anonymous on April 23, 2012
98. ## chemistry

What is the solubility of AgCl when it is in a solution of 0.15 M NaCl? (AgCl has Ksp = 1.8 x 10-10.) Make a reaction table. Include rows for initial concentration, change in concentration, and equilibrium concentration. Write down the equation for the Ksp

asked by Anonymous on May 4, 2012
99. ## AP Chem

A chemist added an excess of sodium sulfate to a solution of a soluble barium compound to precipitate all of the barium ion as barium sulfate, BaSO4. How many grams of barium ion are in a 458-mg sample of the barium compound if a solution of the sample

asked by Anna on November 3, 2008
100. ## macroeconomics 2year uni

Consider the following numerical version of the IS-LM model: C = 60 + 0.6Yd I = 150 – 10i YD = Y – T T = 200 G = 250 Real money demand: (M/P)d = (40 + 0.1 Y – 10i)P Real money supply (M/P)s = 80 P = 2 Where Y is output, Yd is disposable income, C is

asked by ismail on April 23, 2009