# 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 129
1. ## AP Chemistry

We add excess Na2CrO4 solution to 68.0 mL of a solution of silver nitrate (AgNO3) to form insoluble solid Ag2CrO4. When it has been dried and weighed, the mass of Ag2CrO4 is found to be 0.270 grams. What is the molarity of the AgNO3 solution? Answer in

asked by Gabriella on September 11, 2013
2. ## chemistry

We add excess Na2CrO4 solution to 27.0 mL of a solution of silver nitrate (AgNO3) to form insoluble solid Ag2CrO4. When it has been dried and weighed, the mass of Ag2CrO4 is found to be 0.420 grams. What is the molarity of the AgNO3 solution? Answer in

asked by cheri on September 19, 2012
3. ## chemistry

Which of the following is not true in a dynamic equillibrium describing a saturated solution? Choose one answer. a. solid crystalizes from solution b. solid dissolves in the solution c. concentration of dissolved solute remain constant d. rate of

asked by CC on February 10, 2010
4. ## chemistry 101

We add excess Na2CrO4 solution to 42.0 mL of a solution of silver nitrate (AgNO3) to form insoluble solid Ag2CrO4. When it has been dried and weighed, the mass of Ag2CrO4 is found to be 0.590 grams. What is the molarity of the AgNO3 solution? Answer in

asked by maria on October 18, 2013
5. ## chem 101

We add excess Na2CrO4 solution to 42.0 mL of a solution of silver nitrate (AgNO3) to form insoluble solid Ag2CrO4. When it has been dried and weighed, the mass of Ag2CrO4 is found to be 0.590 grams. What is the molarity of the AgNO3 solution? Answer in

asked by maria on October 18, 2013
6. ## Chemistry

What is the pressure (in atmospheres) of the gas inside the container connected to an open-end, mercury-filled manometer as shown in the picture? The atmospheric pressure is 0.95atm. l----l | (G) l | l - --- l Hg l Hg *18cm - - --- Hg Hg HgHgHgHg what

asked by leo on October 20, 2007
7. ## Civics

Which of the following was NOT a reason why a stronger central government was needed? To solve the economic problems of the United States =To limit individual liberties To deal with military matters both internal and external To make the States work

asked by Sierra on February 14, 2012
8. ## Chemistry

so i got a test and like usual my teacher didn't teach me half of the stuff that's going to be on it so he gave us a pretest of what is going to be on it and an answer key and i got several questions 13.) what is the pH of a formic acid if the

asked by Chemistry on April 7, 2009
9. ## math right triangle

the hypotenuse of a right triangle is 1 inch longer than one leg and 8 inches longer than the other. Find the length of each side of the triangle. Let l1, l2 be the legs. l1^2 + l2^2 = h^2 but h= l1+1 and h= l2 + 8 solve these for l1, l2, put them in the

asked by darren on December 5, 2006
10. ## Discipline and Guidance

Two children are fightining over the blue marker. According to constructivist discipline, what is the best approach for the caregiver in this situation? A. Take the blue marker from both children and tell them to clean up their work,since they cannot get

asked by Melody on January 11, 2007
11. ## chemistry

In the carbonic acid equilibrium system, what happened to the size of the size of the balloon upon addition of more acid (HCl) and also what happened to the balloon upon addition of NaOH, was this expected? why or why not. ( show answers using equilibrium

asked by kims on April 24, 2012
12. ## Algebra

How do you know if a value is a solution for an inequality? How is this different from determining if a value is a solution to an equation? If you replace the equal sign of an equation and put an inequality sign in its place, is there ever a time when the

asked by will on April 15, 2008
13. ## PHYSICS! are these correct?

How much kinetic energy does a 700-gram baseball have that is travelling at 20 m/s? What would be the kinetic energy if you doubled the mass? What would be the kinetic energy if you doubled the velocity? V1= 20 m/s K1= ½ m v1^2 = ½ (700 g)(20 m/s)^2 = ½

asked by A on March 21, 2016
14. ## Math

Please help! I'm behind and need help. Only need help with these questions. Unit 4, Lesson 10 Math test (Quadratic Functions and Equations Unit Test). Thank you! 2. How is the graph of y equals -8x^2 - 2. different from the graph of y equals negative 8x

15. ## Math

What is the solution of the following equation? 2 – 8x = -6 Is the ordered pair (-2, 9) a solution of the equation y = x - 7? Solve the following equation. 3(z – 2) – z = 4z – 20 Find the slope of the line that passes through the points (4, 8) and

asked by REEEEEEEEEE on January 16, 2018
16. ## math

just an algebra question. how would you solve: (3x^2 +5)(3x^2 +5) ^ means power :] Since you have not given us an equation, it is impossible to "solve" your problam. Please repost with the complete equation, so we can help you. I hope this helps a little.

asked by Kelly on September 5, 2006
17. ## Algebra 1 Inequalities (help)

So, I'm kinda confused, How would I solve 1c < 400, I'm trying to go back, and practice my Inequalities, and I kinda forgot how exactly to solve them.... And I don't want to give any of my actual problems so I just created this one off the top of my head,

asked by Ronny on October 23, 2017
18. ## Chemistry

What would be the effect on Ksp if an unsaturated solution of CaSO4 was titrated instead of a saturated solution of CaSO4. would ksp be higher, lower or the same? would ksp be higher due to the more ions available in the solution. so you would have to use

asked by Sean on April 12, 2017
19. ## Math

Graph the solution: 3x-y-7=0 This is my thought process in this: The first equation I can solve for y since we don't have to worry what x is. And I get y>3x-7. The second one, however, y is being multiplied by 5, so I can't just divide by 5 on both sides

asked by Momo on February 6, 2010
20. ## Intermediate Accounting

On January 1, 2005, Lynn Corporation acquired equipment at a cost of \$600,000. Lynn adopted the double-declining balance method of depreciation for this equipment and had been recording depreciation over an estimated life of eight years, with no residual

asked by Jeniffer on February 5, 2010
21. ## algebra

simplify the following radical expression: 3 sqrt (-27) a) -3 b) 3 c) 0 d) no solution exists do i write the sqrt like this or do i write like this sqrt () 3 -27 please show me the correct way to write it thanks

asked by anthony on June 17, 2010
22. ## algebra

Take any number (except for 1). Square that number and then subtract one. Divide by one less than your original number. Now subtract your original number. You reached 1 for an answer, didn’t you? How does this number game work? (Hint: Redo the number

asked by Anonymous on March 25, 2010
23. ## Algebra

Take any number (except for 1). Square that number and then subtract one. Divide by one less than your original number. Now subtract your original number. You reached 1 for an answer, didn’t you? How does this number game work? (Hint: Redo the number

asked by Candace on April 21, 2008
24. ## Algebra

Could you please check my work. Determine whether the realtion is a funtion. 2.{(-6,2),(-2,5),(3,2),(3,-7)} -Not a function 2. Determine whether the equation defines y as a function of x. 2x+4y=15- the answer I got is y is a fucntion of x. Evalute the

asked by Soly on August 30, 2007
25. ## physics

Which of the following statements about work is or are true? (More than one statement may be true.) A. Negative net work done on an object always reduces the object's kinetic energy. B. If the work done on an object by a force is zero, then either the

asked by andrea on February 22, 2011
26. ## Chemistry-Dr. Bob

Reacting 1 L of H2(g) with 1 L C2H2(g) (both at STP) results in the formation of 1 L of C2H4(g) if the reaction is maintained at the same conditions (STP) and goes to completion. If this reaction produced 6.3 kJ of heat (absorbed by the surroundings),

asked by Sanaya on January 20, 2016
27. ## Statistics

Consider the hypothesis test given by Ho:u=530, H1:u does not equal 530. In a random sample of 85 subjects, the sample mean is found to be 522.3. Also, the population standard deviation is 29. Determine the P-value for this test. Is there sufficient

asked by Sandy on March 8, 2013
28. ## Physics

How much heat does a freezer need to remove from 1kg of water at 40°C to make ice at 0°C? (You will need to use the specific heat of water to drop the temperature first, before trying to make the phase change!) Show your work. Please help! Also, this

asked by Jay on December 7, 2016
29. ## physics

The effective k of the diving board shown here is 1675 N/m. A heavy diver is bouncing up and down at the end of the diving board. With what frequency does he bounce up and down? How long does it take for him to complete one bounce (up and down)? What is

asked by Alexis on February 1, 2015
30. ## Statistics

The mean graduation time is 5 years with a standard deviation of 6 months for the Monte Carlo College, in which the graduation time is related to the grade of the students. The class size is normally 40. Calculate how many students may graduate by the end

asked by Diana on October 12, 2011
31. ## Math

A company manufactures fence sections for residential use. The number, s, of sections that can be produced per day is related to the number of hours, h, of labour required by the function s=2.1 square root h (Show your work) a) State the domain and range

asked by Alex on October 8, 2014
32. ## Philosophy

First, translate the following statement pair into the symbols of propositional logic (use the letters P and R) (a) We will have a picnic unless it happens to rain (b) We won’t have a picnic only if it happens to rain Second, use truth tables to classify

asked by joe on February 28, 2013
33. ## physics

Two wires run from the top of a pole 2.6 tall that supports a volleyball net. The two wires are anchored to the ground 2.0 apart, and each is 2.0 from the pole. The tension in each wire is 100. I do not understand how to setup work. if could show I would

asked by rob on March 17, 2013
34. ## Physics

A driver of a car going 90.0km/h suddenly sees the lights of a barrier 40.0 metres ahead. It takes the driver 0.75 seconds before she applies the brakes, and the average acceleration during braking is -10.0 m/s squared. Does the car hit the barrier?SHow

asked by Steph on February 13, 2011
35. ## chemistry

need to calculate the mass (m ) of NaoH with C% = 15 % , to balance 176 g of H2SO4 so i though to use this method C% = mass of h2s04 / mass of h2so4 + mass of Naoh which is unknown mass of Naoh = c% x mass of h2so4 / 100 is this the right method or not ?

asked by auro on March 18, 2011
36. ## chemistry

need to calculate the mass (m ) of NaoH with C% = 15 % , to balance 176 g of H2SO4 so i though to use this method C% = mass of h2s04 / mass of h2so4 + mass of Naoh which is unknown mass of Naoh = c% x mass of h2so4 / 100 is this the right method or not ?

asked by auro on March 18, 2011

These two q's for my homework I am very confused on how to do: First Question: Using Newton’s method, approximate the value of √5 up to 2 decimal points starting with x1 = 3. 2nd Question: Thomas Malthus was an economist that predicted that the

asked by Anonymous on November 16, 2014
38. ## Calculus

These two q's for my homework I am very confused on how to do: First Question: Using Newton’s method, approximate the value of √5 up to 2 decimal points starting with x1 = 3. 2nd Question: Thomas Malthus was an economist that predicted that the

asked by Anonymous on November 16, 2014
39. ## Algebra I

your class sells 64 tickets to a play. A student ticket cost \$1. An adult ticket \$2.50 If you collect \$109 in total ticket sales, how many adult tickets do you sell? please show how to solve

asked by Jarrett on January 4, 2015
40. ## functions

For each problem, construct two composite functions, . Evaluate each composite function for x=2 ok i have not dealt with composite functions can I please get some help with this as I have 20 questions to do can someone show me step by step on how to

asked by Johnathan on October 18, 2013
41. ## algebra

Solve the following inequality. Yuur answer show be enter with the variable on the the left side of the inequality. ( i.e. x< 1000) In part I you will enter your boundry point. In part II you will enter L for less than and G for greater than. 5x + 4< 39

asked by Anonymous on May 6, 2018
42. ## Math

My border is 9 feet long and 1/3 foot wide each tile measures 1/3 foot by 1/3 foot each box of tiles contains 6 tiles how many boxes of tile,do I need show 2 equations to solve the problem

asked by John on February 1, 2016
43. ## ALGEBRA

i NEED MORE THAN JUST THE EXAMPLE i ALSO NEED TO EXPLANATION Take any number (except for 1). Square that number and then subtract one. Divide by one less than your original number. Now subtract your original number. You reached 1 for an answer, didn’t

asked by SLIM on March 9, 2010
44. ## chem

An aspirin tablet weighing 0.475 g has been analyzed and contains 68.2 % ASA (180.16 g/mol) by mass. A student dissolved the tablet in hot NaOH and the cooled solution was diluted with DI water to the mark in a 250 mL volumetric flask. Exactly 3.00 mL of

asked by CHEMCHEM on April 18, 2011
45. ## Chemistry Lab

A student who is performing this experiment pours an 8.50mL sample of saturated borax solution into a 10mL graduated cylinder after the borax has cooled to a certain temperature, T. The student rinses the sample into a small beaker using distilled water,

asked by ConfusedStudent on March 13, 2013
46. ## Chemistry

Redox titrations are used to determine the amounts of oxidizing and reducing agents in solution. For example, a solution of hydrogen peroxide, , can be titrated against a solution of potassium permanganate, . The following equation represents the reaction:

asked by Peter on September 18, 2010
47. ## Physics

A 57.5-kg skateboarder starts out with a speed of 1.80 m/s. He does +80.0 J of work on himself by pushing with his feet against the ground. In addition, friction does -265 J of work on him. In both cases, the forces doing the work are nonconservative. The

asked by Anonymous on November 12, 2012
48. ## Writing Sentences and Paragraphs Paragraph 2

ASSIGNMENT: Your favorite cousin has moved to your town and is looking for a job. Her previous experiences are working as a cashier and sales clerk at two department stores. You know she plans to apply at similar stores in your town. But you also know she

asked by Shawna on January 5, 2012
49. ## Chemisty

A 25-mL sample of 0.160M solution of NaOH is titrated with 17 mL of an unknown solution of H2SO4. What is the molarity of the sulfuric acid solution? A. 0.004M H2SO4 B. 0.235M H2SO4 C. 0.117M H2SO4 D. 0.002M H2SO4

asked by Elizabeth on February 18, 2014
50. ## chemistry

A chemist dissolves 0.097 g of CuSO4 · 5 H2O in water and dilutes the solution to the mark in a 500-mL volumetric flask. A 13.6-mL sample of this solution is then transferred to a second 500-mL volumetric flask and diluted. What is the molarity of CuSO4

asked by Anonymous on April 14, 2015
51. ## Physics

A 5.60-kg particle has the xy coordinates (-1.20 m, 0.500 m), and a 5.20-kg particle has the xy coordinates (0.600 m, -0.750 m). Both lie on a horizontal plane. At what x and y coordinates must you place a 1.60-kg particle such that the center of mass of

asked by winterWX on February 21, 2007
52. ## biology

1. Which statement is TRUE? a. A cell placed in an isotomic solution will swell. b. A cell placed in a hypotonic solution will swell. c. A cell placed in a hypotonic solution will shrink. d. A cell placed in a hypertonic soluction will remain the same

asked by akim on June 25, 2011
53. ## Biology

Which of the following solutions bathing a red blood cell would be considered isotonic? Which of the following solutions bathing a red blood cell would be considered isotonic? a solution containing 300 mM NaCl a solution containing 150 mM glucose a

asked by Anonymous on February 19, 2015
54. ## Math

The earth takes 365 1/4 days to go around the sun. Mercury takes 3 days less than 1/4 of this time. How many days does Mercury take to go around the sun? I believe I would have to find 1/4 of the 365 1/4 days then take 3 days out. I was given this do as

asked by Arianna on July 19, 2016
55. ## algebra

Stacey throws two dice. The difference in face value between the two dice is three, and the product of the numbers thrown is equal to twice the sum of the two numbers. Show and solve an alebraic equation that finds the numbers Stacey threw.

asked by Ella on April 27, 2011
56. ## Chemistry

Gas X has a density of 2.60/L at STP. Determine the molar of this gas. Please show me the steps to solve this problem. thanks You just need the definition. One mol of a gas at STP occupies 22.4 L. You have the mass of 1 L. Just calculat the mass of 22.4 L.

asked by michelle on March 21, 2007
57. ## CHEMISTRY

1. What is the vapor pressure at 25°C of a solution of 1.20g of nephtalene C10H8 in 25.6g of benzone C6H6? The vapor pressure of pure benzene at 23°C is 86.0mmHg the vapor pressure of naphthalene can be neglected. Calculate the vapor pressure lowering of

asked by N COMAS on March 20, 2013
58. ## chemistry

Insert a complete data table, including appropriate significant figures and units, in the space below. Also include any observations you made over the course of Part I. Aluminum Measured Mass of Metal 41.66 g Distilled Water Measurement 25 mL Distilled

asked by kim on July 7, 2014
59. ## English

1. He can not solve the math problem. 2. He cannot solve the math problem. 3. He can't solve the math problem. 4. He could not solve the math problem. 5. He couldnot solve the math problem. 6. He couldn't solve the math problem. (Are they all grammatical?

asked by rfvv on July 16, 2013
60. ## Government US

The United States has two court systems, state and federal. The federal system a. has discretionary jurisdiction over all cases arising in the state system. c. is the only one based on the constitutional doctrine of the separation of powers. e. None of

asked by HM on September 11, 2011
61. ## chemistry

Consider an insulated system containing 150 g of liquid water and 150 g of ice at equilibrium under atmospheric pressure. A total of 22g of steam at 120◦C is admitted to the system. What is the phase composition and temperature when equilibrium is

asked by ace on November 14, 2012

A drainage system for a 40 acre field is designed to remove 3/8 inch of standing water from the entire field in 24 hours. What flow rate (gpm) must the drainage system achieve to meet the design specification?

asked by Nabil on March 31, 2012
63. ## Physics

Posted earlier but I wrote it incorrectly. How fast would a rocket have to be going in order to completely leave the solar system? (Assume that the Sun is the only mass in the solar system and that the rocket is beginning its journey from Earth's orbit?)

asked by Kaitlyn on September 30, 2011
64. ## Chem: pH of acids and bases

Calculate the concentrations of all species in a 0.320-M solution of H2X if K1 = 6.31E-06 and K2 = 3.71E-09 [H2X] = [H3O1+] = [HX1-] = [X2-] = Work: H2X + H2O --> HX- + H3O+ .320 M This is literally the only thing I know. How can there be two different

asked by Maggie on October 24, 2016
65. ## chemistry

(3 pts) The stockroom prepared a solution by dissolving 0.2300 g of Erythrosin B (MW = 879.87 g/mol) in DI water in a 250.00 mL volumetric flask. A student pipetted 5 mL of the stockroom solution into a 100.00 mL volumetric flask and diluted it to the mark

asked by Anonymous on February 4, 2008
66. ## Accounting for Managers

Question 1 of 20 5.0 Points Which of the following products probably would be manufactured using a job order costing system? A. Paper B. Baseball cards C. Computer monitors D. Company business cards Reset Selection Mark for Review What's This? Question 2

asked by Blu on September 5, 2012
67. ## Physics

At the instant the traffic light turns green, an automobile that has been waiting at an intersection starts ahead with a constant acceleration of 2.50 . At the same instant, a truck, traveling with a constant speed of 15.4 , overtakes and passes the

asked by JC on September 10, 2006
68. ## health

What is one strength you see in the current U.S. health care system? What is one weakness you see? List and describe one of the challenges facing the U.S. health care system.

asked by Lisa on May 13, 2008
69. ## Science

The potential energy of a system of two particles is given by u(x)=a/x2-b/x. Find minimum potential energy of the system, where x is the distance of separation and a, b are positive constants.

asked by Afeera Ashfaq on December 22, 2017
70. ## Social Studies

What did the Maya adopt from the Olmec? A. Calendar B.Slash-and-burn agriculture C.Pyramids D.Writing system I think it might be either the calendar or writing system

asked by ^-^ on December 27, 2018

What is one strength you see in the current U.S. health care system? What is one weakness you see? List and describe one of the challenges facing the U.S. health care system.

asked by sasha on February 11, 2010
72. ## Physics

When a mass-spring system oscillates with a small amplitude of A1, it has a period of 1.0 s. If the system is then made to oscillate with a larger amplitude of A2 = 2*A1, what is the new period? Thanks!

asked by Linda on December 7, 2010
73. ## College

What is one strength you see in the current U.S. health care system? What is one weakness you see? List and describe one of the challenges facing the U.S. health care system.

asked by Tony on November 4, 2010
74. ## Math

The owner of a large company is conducting a survey about job satisfaction, including questions about salary, hours, stress, and other conditions. There are about 800 employees in the company, including 100 executive positions, 650 middle-management

asked by Fatima on August 7, 2012
75. ## Chemistry

Find the number of mg Na2co3 FW = 106g/mol required to prepare 500ml of 9.2ppm NA solution. ppm = mg/L 9.2mg/1000ml x= 0.0092 x 500ml = 4.6mg x 23 = 106mg The right answer 10.6mg NA weight = 23 Who helps me to solve it for me.

asked by Fai on November 4, 2012
76. ## Alg 2

a rectangular picture frame measures 8 inches by 4 inches. You want to triple the frame's area by adding the same distance, x, to the length and width. Find the value of x and find the new dimensions of the frame. How do you do this?? Please show work

asked by Anna on July 26, 2011
77. ## Math Geometry

a shipping crate carrying e readers has a length of 19 1/3 feet, a width of 7/23 feet, and a height of 7 5/6 feet. Whaat is the volume of the shipping crate? Show your work. i know V=lwh , but I'm getting the wrong answer! Please help.

asked by andra on July 9, 2013

A 35-mm camera equipped with a 40-mm focal length lens is used to photograph a tree 17 m tall. If a 32-mm high image of the tree on the CCD sensor is required, how far should the camera lens be from the tree? Show Work Please! Thank you so much!

asked by Need Help Urgent on May 3, 2015

A 35-mm camera equipped with a 40-mm focal length lens is used to photograph a tree 17 m tall. If a 32-mm high image of the tree on the CCD sensor is required, how far should the camera lens be from the tree? Show Work Please! Thank you so much!

asked by Need Help Urgent on May 2, 2015
80. ## Phsyics Plz Help

How many grams of carbohydrate does a person of mass 75 kg need to metabolize to climb five flights of stairs (15 m height increase)? Each gram of carbohydrate provides 17.6 kJ of energy. Assume 10.0% efficiency—that is, 10.0% of the available chemical

asked by Nasir on June 11, 2012
81. ## Chemistry

Show that the hydroxide-ion concentration in an aqueous solution is 1x10-4 M when the hydronium-ion concentration is 1x10-10 M.

asked by Cami on May 10, 2011
82. ## Algebra

Write the equation of the line passing through the given point with the indicated slope. Give your results in slope-intercept form. Point: (0,5) Slope: m=-3/5 Show equation I will be happy to critique your work on this.

asked by Linda on May 20, 2007
83. ## Math

How many total squares are there on a standard 8 by 8 checkerboard? (It is more than 64)! Make sure to show all your work and explain your reasoning. Explain how you can determine the number of total squares for any N by N board. Bonus: How many total

asked by Ell on October 27, 2011
84. ## Math

The denominator of a fraction exceeds the numerator by 7. If 3 is added to the numerator and 1 is subtracted from the denominator, the resulting fraction is equal to 4/5 . Find the original fraction. PLZ SHOW ALL WORK AND HURRY!!!

asked by Nate on April 27, 2017
85. ## math

suppose she cut the cake in 2008 size pieces and six people ate all the pieces explain how they could have divided the pieces so that everyone ate the same amount of cake you may show your work in a drawing

asked by Anonymous on February 2, 2014
86. ## Math

The heights of four of the starting players on the basketball team are 183 cm, 178 cm, 174 cm, and 185 cm. If the mean height of all five starting player is 182 cm, what is the height of the fifth starting player? Show your work

asked by Samay on October 21, 2017
87. ## calculus

given the following piecewise function x+11 for -9

88. ## algebra

HELP! Please Calvin invested \$7500 for one year, part 12% annual interest and the rest at 10% annual interest. His total interest for the year was \$890. How much money did he invest at 12%? Show work.

asked by Briana on September 7, 2012
89. ## Math

Suppose she cut the cake into 8 equal size pieces and 6 people ate all the pieces. Explain how they could have divided the pieces so that everyone ate the same amount of cake. Show work in a drawing

asked by Kaylee on March 26, 2015
90. ## Science

The first speed limits for cars were two miles per hour in a city and four miles per in the open country. How long would it take for a motorist to travel 15 miles assuming that he had to travel in the city. Please show work.

asked by Jennifer on February 25, 2008
91. ## Math

Coach Coleman is ordering hats for this year's teams. There are 6 teams. Each team has 12 players on the roster. He orders 12 more hats for the team managers. How many hats does he order in all? Show your work.

asked by Anonymous on October 23, 2013
92. ## geometry

The diameter of circle C is 18 cm. is 60°. Use this information, the diagram, and your experiences in geometry this semester to answer these questions. (Use .) a) Find . Explain. b) Find . Explain. c) Find . Explain. d) Find the length L of . Show your

asked by Anonymous on June 1, 2010
93. ## chem

I need help balancing this redox equation: H2O2 + Ni+2 --> H2O + Ni+3 in basic solution. Here's what I have so far: Ni+2 --> Ni+3 + 1e- H2O2 --> H2O I can't seem to make the second half-reaction balance. If you follow the rules for balancing basic redox

asked by Chris on January 15, 2007
94. ## alg.

solve the system by addition: -5x-9y = -5 x+5y=-15 I've tried this one over and over, but I can't seem to get the right answer. I don't even really know where to start. each time i try to do it, i go about it a little differently and i'm completely lost,

asked by j on August 14, 2007
95. ## Math Help!

1.) Solve the system by graphing. You may use paper or a calculator. 2x - y = 8 x + 3y = 11 2.) The revenue for a certain brand of toothpaste is y = 2.5x where 'x' is the number of tubes of toothpaste sold and 'y' is the total income for selling 'x' tubes.

asked by Rana on December 7, 2013
96. ## Math

1.) Solve the system by graphing. You may use paper or a calculator. 2x - y = 8 x + 3y = 11 2.) The revenue for a certain brand of toothpaste is y = 2.5x where 'x' is the number of tubes of toothpaste sold and 'y' is the total income for selling 'x' tubes.

asked by Rana on December 7, 2013
97. ## us history

What did the founders mean when the wrote ¨to form a more perfect union?¨ A) a military would be formed to protect against foreign threats. b) a court system would be formed to resolved disputes between citizens. c) a process will be created to solve

asked by Ana on October 14, 2015
98. ## Algebra

A gardener combines x fluid ounces of a 20% liquid fertilizer and 80% water mix with y fluid ounces of a 5% liquid fertilizer and 95% water mix to make 30 fluid ounces of a 10% liquid fertilizer and 90% water mix. a. Write a system of linear equations that

asked by Amie on January 16, 2013
99. ## ethics question 2

if you have a certain amount of work to do each day, and you can complete that work AND spend an hour on a social networking site, then why not? Why don't offices let their employees use social networking sites if their work is done?

asked by Anonymous on November 5, 2010
100. ## ethics

if you have a certain amount of work to do each day, and you can complete that work AND spend an hour on a social networking site, then why not? Why don't offices let their employees use social networking sites if their work is done?

asked by Anonymous on November 5, 2010