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

91,718 questions, page 369
1. Math

Factor- Do All Work y2+3y-4

asked by Cortesha on December 14, 2011
2. Pre-calc

how can I divide (3+4i)/(2-5i)?? If there's work, that would help me too

asked by Mariam on October 6, 2017
3. math

why does lxw=a work

asked by sam on February 26, 2013
4. math

5-m=3 1/8 how do I work this problem out?

asked by Rebecca on May 12, 2011
5. Algebra 2

Please work this problem. A= 1/2 h(c+d) h=

asked by Anonymous on October 2, 2014
6. language

how does punctuations work

asked by Einstine on March 2, 2013
7. possessive noun

asked by marlen on October 8, 2008
8. maths

work out 20 +(17.5-6.5) sqaured

asked by syrone on February 21, 2018
9. math

How would I work this problem -6x>1/3

asked by bubba on November 20, 2009

divide 5x^3y^2+xy^4 by xy how do you work this?

asked by 12-year-old-poet on February 1, 2012
11. beginning algebra

how to work out 0.00855 ÷ 0.09

asked by cc on September 1, 2012
12. math

How would I work this problem -6x>1/3

asked by bubba on November 20, 2009
13. math

-3/4x + 1/4x= -6 how would I work this problem?

asked by Anonymous on October 27, 2010
14. Physics

..........is consumed whenever work is done.

asked by Anonymous on August 18, 2010
15. Science

how does a computer work

asked by Einstine on August 8, 2012
16. algebra

How do i work out this problem: f-7.8=

asked by salina on August 18, 2011
17. chemistry

What is electrolysis, and how does it work?

asked by Popcicle on March 15, 2009
18. Science

How does gravity work?

19. Quick math help

Can some please help me work out each of these systems? 1. 4y=13+2x 6x+4y=9 2. Y=6-2x 5x=14-3y 3. 4x-6y=15 6x=10+4y

asked by Anonymous on February 16, 2014
20. SCIENCE

how does a pencil work?

asked by ZEELINGA on January 18, 2013
21. once more

Is the answer to 9^2x = 3^x+6 is it -6? No. Let me see your work. 9^2x= 3^4x

asked by trish on January 13, 2007
22. Quick math help

Can some please help me work out each of these systems? 2. 4x-y=9 Y+2x=12 3. X+3y=13 Y=5-x 4. 3a+b=6 a=10-3b

asked by Anonymous on February 16, 2014
23. math refreshers

18 is what percent of 72? how to work this?

asked by lily on August 21, 2012
24. I need to know how to work this Maths Problem

asked by Kathlyn on May 22, 2014
25. maths

Work out: 2^3 + root 49

asked by anonymous on January 10, 2015
26. math

How would I work this problem -6x>1/3 6*13=78 x

asked by bubba on November 20, 2009
27. math

How do I work out the problem 5.2x 3.4= what.

asked by Anonymous on August 6, 2012
28. SCIENCE

WHAT IS THE WORK OF MITOCHONDRIA

asked by Anonymous on June 14, 2016
29. Math

Thank you Ms.Sue but how do you work it out?

asked by Dee on February 23, 2017
30. algebra

{5-8(2-4)}={5-8(2-4)}=5-16-32 I need help I do not know how to work this problem.

asked by johnnie on February 21, 2009
31. math

how do I work out the problem 5.2x 3.4= what.

asked by Anonymous on August 6, 2012
32. Math

Here is the link, it should work

asked by A very Speedy Boi on April 12, 2019
33. social studies

how does a democrate work

asked by donald on July 8, 2009
34. math

If Log10x = -7 how do I work out the value of x?

asked by sue on April 6, 2008
35. health

what does not antibiotics do not work against?

asked by lanae on April 27, 2010
36. math

how do you work out a pecentage of something?

asked by jenny on September 25, 2008
37. really?

does this site even work?

asked by someone on April 27, 2010
38. maths (trig)

asked by random name on February 11, 2013
39. math

- how would i work out this problem? -5 + -4=

asked by mary on October 6, 2008

How do I work a problem like this? 5/8 + m = 1

asked by Mary on October 27, 2010
41. intergrated physics and chemistry

how is work expressed

asked by anita on November 29, 2007
42. Science

asked by Mia on May 9, 2017
43. algebra

explain how to work 1)(+4)+3

asked by bee on September 26, 2013
44. Science

How do scientist work

asked by Anderson on September 27, 2016
45. Ions & Atoms-Lab Part 1

We did a lab on Ions and Atoms. The purpose was basically to identify the properties of an ion and compare them to atoms. These were the Materials -safety goggles -apron -copper(II) chloride (CuCl2) -3 250-ml beakers -water aluminum foil -scissors

asked by Sara on April 19, 2010
46. Physics

Pt. 1 Gas in a container is at a pressure of 2.3 atm and a volume of 6.1 m3. What is the work done on the gas if it expands at constant pressure to five times its initial volume? Answer in units of J My wrong answer: 56.12 Pt. 2: What is the work done on

asked by Ray on October 1, 2012
47. Physics

Pt. 1 Gas in a container is at a pressure of 2.3 atm and a volume of 6.1 m3. What is the work done on the gas if it expands at constant pressure to five times its initial volume? Answer in units of J My wrong answer: 56.12 Pt. 2: What is the work done on

asked by Ray on October 1, 2012
48. accounting

Joe operates a business that locates and purchases specialized assets for clients, among other activities. Joe uses the accrual method of accounting but he doesn’t keep any significant inventories of the specialized assets that he sells. Joe reported the

asked by Ramona on May 6, 2010
49. Taxation

81. Joe operates a business that locates and purchases specialized assets for clients, among other activities. Joe uses the accrual method of accounting but he doesn’t keep any significant inventories of the specialized assets that he sells. Joe reported

asked by Roxanne on May 31, 2010
50. Criminal Justice/Report Writing

If a Miranda admonishment is needed, the generally accepted method of giving it is to: A. recite the Miranda admonishment from memory. B. give the interviewee a printed Miranda admonishment to read. C. ask the interviewee if he or she already knows the

asked by Pat on November 1, 2014
51. Managerial Economics

Suppose Bill is on a low-carbohydrate diet. He can eat only three foods: Rice Krispies, cottage cheese, and popcorn. The marginal utilities for each food are tabulated below. Bill is allowed only 167 grams of carbohydrates daily. Rice Krispies, cottage

asked by Nauman on March 3, 2010
52. math

simplify: x^(3/2)(x + x^(5/2) - x^2) add exponents when multiplying. For instance, the first term above x^3/2 * x=x^3/2 * x^2/2=x^5/2 add exponents when multiplying. For instance, the first term above x^3/2 * x=x^3/2 * x^2/2=x^5/2 ok, so would the answer

asked by julee on August 12, 2007
53. English

posted by rfvv Friday, February 3, 2017 at 10:33am. 1. The guests talked about a lot of topics on the talk show. 2. The guests talked about a lot of topics in the talk show. --------------------------- Which one is correct? Do we have to use 'on' here? 3.

asked by rfvv on November 7, 2017
54. thermodynamics

A heat engine, X, operates between a reservoir at 1000˚C and a body at 600˚C. Heat transfer to the heat engine is 1000 kJ and work output is 220 kJ. Another Engine, Y, operates between, the body at 600˚C and the atmosphere at 27˚C. Heat rejected to the

asked by manigandan on December 27, 2016
55. Chemistry***

A mixture containing 19.8 moles of H2 and 7.2 mole of I2 was allowed to reach equilibrium in a 5 L closed vessel at ToC according to the equation: H2 (g) + I2 (g) 2HI (g) At equilibrium, 14 moles of H2 was present. The equilibrium constant for this

asked by plasma membrane on December 30, 2014
56. Chemistry

A solution of hexane in the solvent (CH3)2CO has a mole fraction of CH3(CH2)4CH3 of 0.114. What mass (g) of the solution must be taken if 1690 g of hexane is needed? Molar Mass (g/mol) CH3(CH2)4CH3 100.21 (CH3)2CO 58.05 Density (kg/L): CH3(CH2)4CH3 0.6838

asked by Scott on September 2, 2008
57. Data Management

At a banquet, 4 coupes are sitting along one side of a table with men & women alternating. a) how many seating arrangements are possible for these eight people? b) how many arrangements are possible if each couple sits together? explain your reasoning.

asked by Anonymous on November 18, 2009
58. Chemistry

The piperazine content of an impure commercial material can be determined by precipitating and weighing the diacetate: (C2H4)2N2H2 + 2 CH3COOH → (C2H4)2N2H2(CH3COOH)2 In one experiment, 0.3126 gram of the sample was dissolved in 25 mL of acetone, and 1

asked by Tom on August 23, 2014
59. Physics

The university skydiving club has asked you to plan a stunt for an air show. In this stunt, two skydivers will step out of opposite sides of a stationary hot air balloon 2,500m above the ground. the second skydiver will leave the ballon 20 seconds after

asked by Tony on April 5, 2015
60. History

Which accurately describes an aspect of the triangular trade during the 16th and 19th centuries? The triangular trade included European merchants, who purchased corn, tomatoes, cocoa, and tobacco from African tribal leaders in exchange for whiskey. The

asked by Rylee on November 30, 2017

1. The sides of a square are increased by a scale of 6. The perimeter of the small square is 10ft. What is the perimeter of the larger sqaure? 2.5 ft, 10 ft, 60 ft, 120 ft 2. A map of Utah has a scale of 1 cm:30 mi. The boarder of Utah and Wyoming measures

asked by Nina on November 5, 2013
62. physics

can someone proofread my opinion essay on nuclear energy. I think nuclear power is the best, safest, most reliable, and the current technology that can provide us with energy. The plants operating are safe and the new designs are even safer. Building

asked by anonymous on June 5, 2019
63. MATH

Please help me with these problems. Work and answer is appreciated! :) thanks. 1. Find on the interval theta is greater than or equal to 0 and less than 2pi; then find the general solution: 5tantheta+1=-2.89 16cos^2theta-6=3 6sin^2theta+sintheta=2

asked by gf on November 7, 2007
64. math

A study was made of 200 preschoolers to determine if they watched a particular television shows. The choices were Little Galileo, Super Reader and Prehistoric Train. The results were: 22 preschoolers did not watch any of these shows 73 preschoolers only

65. Physics - KE/Inertia

The rigid body shown in Figure 10-66 (it is a triangle with the upper mass = to M and the bottom two corners/masses equal to 2M. The bottom side length equals .70 cm with point P in the middle of the side and the other two sides equal .55 cm)consists of

asked by COFFEE on March 26, 2007
66. Maths

One tenth kilogram of Argon is contained in a piston-cylinder assembly. Initially at 4900 K and a volume of 40 liters, the gas undergoes an isobaric process during which the heat input is 30 kJ. Where / how do i start to determine the boundary work and

asked by Gary on March 10, 2007
67. Maths

Hi! I'm working on a math assignment... My teacher wants me to find rainfall data and then work out the volume of water that would fall on a roof. I've already worked out the roof area but the roof is made up of multiple squares. The teacher would like me

asked by Sasha on March 31, 2011
68. math

how long will it take to earn $787.50 on$5000 at 5 1/4%(percent) what is the rate it is compounded? annually, semi-annually, monthly, what? dat information is not given aren't you supposed to be using the interest rate formula? if so, then u have two

asked by Spencer on February 19, 2007
69. Chemistry

Bacterial digestion is an economical method of sewage treatment. 5CO2(g) + 55NH4+(aq) + 76O2(g) -> C5H7O2N(s) + 54NO2-(aq) + 52H2O(l) + 109H+(aq) bacterial tissue The above reaction is an intermediate step in the conversion of the nitrogen in organic

asked by Frances on November 5, 2012
70. Chemistry

Bacterial digestion is an economical method of sewage treatment. 5CO2(g) + 55NH4+(aq) + 76O2(g) -> C5H7O2N(s) + 54NO2-(aq) + 52H2O(l) + 109H+(aq) bacterial tissue The above reaction is an intermediate step in the conversion of the nitrogen in organic

asked by Frances on November 5, 2012
71. physics

A plane leaves Seattle, flies 84.0{\rm mi} at 21.0^\circ north of east, and then changes direction to 52.0^\circ south of east. After flying at 120{\rm mi} in this new direction, the pilot must make an emergency landing on a field. The Seattle airport

asked by Julio on August 9, 2012
72. Math

1. You want to deliver an article with the most impact and easy reading to the readers; you decide that you need to present the data as percentages. For each of the data statements, though, none of them have percent’s. Convert each statement’s data

asked by Han on March 20, 2014
73. PRE-ALGEBRA

1. 5h – 9 = –16 + 6h (1 point) 4 –7 7 10 2. 4x + 4 = 9x – 36 (1 point) –8 –7 8 –3 3. Which of the following equations has an infinite number of solutions? (1 point) 3x – 3 = –4x 2y + 4 – y = 16 7x + 5 = 4x + 5 + 3x 6y – 2 = 2(y – 1)

1. 5h – 9 = –16 + 6h (1 point) 4 –7 7 10 2. 4x + 4 = 9x – 36 (1 point) –8 –7 8 –3 3. Which of the following equations has an infinite number of solutions? (1 point) 3x – 3 = –4x 2y + 4 – y = 16 7x + 5 = 4x + 5 + 3x 6y – 2 = 2(y – 1)

asked by Delilah on December 18, 2012

1. 5h – 9 = –16 + 6h (1 point) 4 –7 7 10 2. 4x + 4 = 9x – 36 (1 point) –8 –7 8 –3 3. Which of the following equations has an infinite number of solutions? (1 point) 3x – 3 = –4x 2y + 4 – y = 16 7x + 5 = 4x + 5 + 3x 6y – 2 = 2(y – 1)

Please check urgently .I have to submit the assignment A give an example of a function whose domain equals the set of real numbers and whose range equals the set? the set {-1,0,1} BGive an example of a function whose domain equals (0,1)and whose range

asked by Fatima on September 18, 2012

Please check urgently .I have to submit the assignment A give an example of a function whose domain equals the set of real numbers and whose range equals the set? the set {-1,0,1} BGive an example of a function whose domain equals (0,1)and whose range

asked by Fatima on September 18, 2012
78. medical terminology

Could someone please check my answers. If they are wrong could you give me the correct answer or tell me where to find it..Thanks in advance for all your help... 1.Uremia is the result of A. electrolye imbalance in the intracellular body fluids. B. a high

asked by PAT on December 12, 2010
79. medical terminology

Could someone please check my answers. If they are wrong could you give me the correct answer or tell me where to find it..Thanks in advance for all your help... 1.Uremia is the result of A. electrolye imbalance in the intracellular body fluids. B. a high

asked by PAT on December 13, 2010
80. Chemistry

Element M(a solid) reacts with an aqueous solution of compound B to form an aqueous solution of compound C(a salt) and a gas composed of element D. When 1.000g of element M is reacted with excess oxgen 1.658g of the compound MO are formed. Compound B is

asked by Patrick on December 12, 2010
81. Chemistry

Element M(a solid) reacts with an aqueous solution of compound B to form an aqueous solution of compound C(a salt) and a gas composed of element D. When 1.000g of element M is reacted with excess oxgen 1.658g of the compound MO are formed. Compound B is

asked by Patrick on December 13, 2010
82. Chemistry

Element M(a solid) reacts with an aqueous solution of compound B to form an aqueous solution of compound C(a salt) and a gas composed of element D. When 1.000g of element M is reacted with excess oxgen 1.658g of the compound MO are formed. Compound B is

asked by Patrick on December 12, 2010
83. Chemistry

Nitric oxide (NO) reacts with molecular oxygen as follows: 2NO(g) + O2(g) ¨ 2NO2(g) Initially NO and O2 are separated as shown below. When the valve is opened, the reaction quickly goes to completion. Determine what gases remain at the end of the

asked by Sarah on October 31, 2010
84. Statistics

A simple random sample is conducted of 1486 young adults who were once college students seeking bachelor’s degrees at a specific university. The study found that 780 of these young adults actually earned bachelor’s degrees. Use a 0.05 significance

asked by Giselle on April 22, 2015
85. Algebra

Victoria wants to plant a vegetable garden in the shape of a square. She has a space allocated in her backyard that will accommodate 175 square feet. Using the drawing below, use the FOIL method to find the polynomial that represents the area of the

asked by Teresa on February 25, 2014
86. Math

Victoria wants to plant a vegetable garden in the shape of a square. She has a space allocated in her backyard that will accommodate 175 square feet. Using the drawing below, use the FOIL method to find the polynomial that represents the area of the

asked by Teresa on February 25, 2014
87. Math

determine whether the system of alinear equqtion has one and only one solutions or no solutions find all solutions whenever they exits 3x- 4y =12 6x -8y =24

asked by gloria on September 10, 2011
88. Physics 1

The period of oscillation for a mass-on-a-spring system is 0.14 s. If m = 3.9 kg, what is the spring constant of the spring? ____N/m

asked by Johnvon on December 5, 2012
89. math

Paul works for three hours. Sally works 2 1/2 times as long as Paul. Raul works 3/4 hours less than Paul. Tim works 1 1/3 times as long and Raoul. How long does each person work? How long do they work together?

asked by Kristin on December 11, 2016
90. physics

a) How much work must be done on a particle with a mass of m to accelerate it from rest to a speed of 8.4×10−2 c ? (Express the answer in terms of mc^2.) b)How much work must be done on a particle with a mass of m to accelerate it from a speed of 0.900c

asked by Nellie on October 26, 2015
91. physics

You overindulged on a delicious dessert, so you plan to work off the extra calories at the gym. To accomplish this, you decide to do a series of arm raises holding a 5.5kg weight in one hand. The distance from your elbow to the weight is 36cm , and in each

asked by dia on October 4, 2014
92. math

can you please check my work. A scientist uses a submarine to study ocean life. She begins at sea level, which is at an elevation of 0 ft. she travels straight down at a speed of 3.5ft per second. she then travels directly up 30seconds at a speed of 2.2ft

asked by sara7 on September 27, 2015
93. Statistics

A random sample of 384 people in a mid-sized city (city one) revealed 112 individuals who worked at more than one job. A second random sample of 432 workers from another mid-sized city (city two) found 91 people who work at more than one job. Find a 99%

asked by twetwewtw on October 26, 2012
94. Statistics

A random sample of 384 people in a mid-sized city (city one) revealed 112 individuals who worked at more than one job. A second random sample of 432 workers from another mid-sized city (city two) found 91 people who work at more than one job. Find a 99%

asked by Huh on November 4, 2012
95. Math

David wants to survey his friends about their favorite animal. He distributes the following survey. Is this an appropriate survey for David to use? Dogs are - 68% Other 32% A - Yes, with this survey David can tell what his friends' favorite animals are B -

asked by fg on May 15, 2018
96. I really dont get this. physics

A .35 kg ladle sliding on a horizontal frictionless surface is attached to one end of a horizontal spring (with the spring constant (k) =455 N/m) whose other end is fixed. The mass has a kinetic energy of 10 J as it passes through its equilibrium position

asked by Kristen on November 18, 2007

Deliverable Length: 4-6 slides with notes Think about your current or past employer (or another company you are familiar with). Using the company as a whole, or the department you are most familiar with, evaluate the extent that management utilizes the

asked by ABE on June 25, 2007
98. Education

Dr. Muse, a sociocultural theorist, speculates that children's ability to reminisce about the past can be promoted through adult teaching. This is an example of a A. Theory B. Research Question C. Hypothesis D. Research method I have read my book, but

asked by Ri on November 12, 2012

you intend to create a college fund for your baby. if you get an interest rate of 5.3% compounded monthly and want the fund to have $123,875 after 17 years, how much needs to be deposited each month? and 1 more jessica used a fixed installment loan from asked by kayla on February 27, 2011 100. Math please explian You are the manager of The Candle Shop using the FIFO method of inventory pricing, what is the dollar value of the ending inventory if there were 17,000 units on hand Dec 31 Jan 1 5,000 @$0.89 Feb15 10,000 @ $0 69 April 15 2,000 @$1.09 July 15 4,000 \$0.99

asked by Jalenee on May 20, 2008