# 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 372
1. ## Pharmacy math

calculate the ordered medication for each of the following IV bags to achieve the ordered concentration Ordered: Add 30 mEq KCl per L of IV fluid. On hand: 360 mL IV solution. On hand is KCl 2 mEq / mL Add: ______mEq; ___ mL Ordered: Add 20 mEq KCl per L

asked by Grace on July 11, 2010
2. ## chemistry

use the following data, as appropriate, to estimate the molarity of a saturated aqueous solution of Sr(IO3)2. Molarity of a saturated aqueous solution of Sr(IO3)2 Sr(IO3)2(s) delt h kJ/mol=-1019.2 delta G kJ/mol=-855.1 delta S= 234 J mol-1K-1 Sr^2+(aq)

asked by Allyx3 on December 2, 2012
3. ## physics

Mere and Ruth investigated the relationship between the applied force, F, and the extension, x of a spring. The results they obtained are shown in the table below. Force, F (N) Extension, x (m) 0.0 0.0 2.0 0.033 4.0 0.066 6.0 0.099 8.0 0.132 10.0 0.165

asked by Kate on October 17, 2007
4. ## Re: Physics/Math

A single force acts on a 5.0 kg particle-like object in such a way that the position of the object as a function of time is given by x = 3.0t - 4.0t 2 + 1.0t 3, with x in meters and t in seconds. Find the work done on the object by the force from t = 0 to

asked by Technoboi11 on March 2, 2007
5. ## language help !

DAD: Where’s the water now? MOM: As high as the car’s wheels. DAD: We’d better go. MOM: We can’t. The car’s dead. DAD: What? MOM: The water is up to the engine; it won’t start. TINA: Oh, no! MARK: What can we do? DAD: I don’t know. (He looks

asked by kelsey on May 20, 2014
6. ## Programming

I need to write a code in java based on an alrgorithm, the alrgorithm and it’s problem are below: The Sieve of Eratosthenes is “a simple, ancient algorithm for finding all prime numbers up to any given limit,” which you can read about at: (Wikipedia:

asked by Mr. Anonymous on March 10, 2019

Advanced economics question(Keynes),HELP PLEASE? 1. except for the discovery of the changes in price level, what causes the equilibrium in Long run labour market,compared with the less sensitive adjustment of demand and supply in shortd in LR? run labour

asked by John on February 1, 2009
8. ## AP Chemistry

This is the question I am having trouble with: A voltaic cell consists of a strip of lead metal in a solution of Pb(NO3)2 in one beaker, and in the other beaker a platinum electrode is immersed in a NaCl solution, with Cl2 gas bubbled around the electrode.

asked by Sarah on April 20, 2015
9. ## statistics

Suppose we want to estimate the average number of purchases in a given hour in a local convenience store. Using this example describe in your own words how you would go about determining this average through: A.) Drawing a random sample: Drawing a random

asked by slomo on February 8, 2015
10. ## Physics

A 2.5-kg block is sliding along a rough horizontal surface and collides with a horizontal spring whose spring constant is 320 N/m. Unstretched, the spring is 20.0 cm long. The block causes the spring to compress to a length of 12.5 cm as the block

asked by Drew on May 30, 2014
11. ## Pre-Algebra

Here's the instructions for my portfolio: 1. Choose two animals with different speeds. You can choose fro m the chart that starts at the bottom of this page or do research to choose your own. 2. Design a fair race in which the two animals have an equal

asked by TotallyLost on May 3, 2017
12. ## Math

Use the Hamilton method of Apportionment to make the assignment. In a recent census, Iowa's population in thousands was 4,503, Illinois' was 8,220, and Indiana's was 5,300. Allocate 31 members of the U.S. House of representatives to these three states.

asked by Catherine on March 26, 2017
13. ## Math

Use the Hamilton method of Apportionment to make the assignment. In a recent census, Iowa's population in thousands was 4,503, Illinois' was 8,220, and Indiana's was 5,300. Allocate 31 members of the U.S. House of representatives to these three states.

asked by Catherine on March 27, 2017
14. ## Chemistry (organic)

You have a solution that contains 5.0 g of oxalic acid dissolved in 150 mL of water. This solution is placed in a separatory funnel, and then 100 mL of diethyl either is added to the separatory funnel and an extraction is performed (diethyl ether and water

asked by Brendon on March 3, 2015
15. ## maths

A two digit number is k times the sum of the digit. By interchanging the digits, Find the number is how many times its sum of the digits. Explain method

asked by sanjay on February 28, 2017
16. ## Precalc/Trig

Sorry there are quite a few problems, but I just need to know if these are correct (and if they aren't, where I went wrong): 1. Solve these equations. tanθ = -√3 θ = 2π/3 + kπ θ = 5π/3 + kπ 2. secθ = √2 θ = π/4 + 2kπ θ = 7π/4 + 2kπ 3.

asked by Heather on November 11, 2014
17. ## Melting point

Do you have any idea what the melting points and range might be for a 50/50 mixture of: 1. Benzoin (M.P.: 135-136) and succinimide M.P.: 121-123 and 2. Benzoic acid M.P.: 121-122 and succinimide M.P.: 122-124 I'm doing a lab with really laughable melting

asked by Sheryl on October 1, 2006
18. ## Physics

A man stands on the roof of a 15m tall building and throws a rock with a velocity of magnitude 30m/s at an angle of 33deg above the horizontal. Ignore air resistance. Calculate: a) the maximum heigh above the roof reached by the rock b) the magnitude of

asked by Kyle on September 27, 2011
19. ## math

Information related to Hermesch Company for 2011 is summarized below. Total credit sales \$2,200,000 Accounts receivable at December 31 825,000 Bad debts written off 33,000 What amount of bad debts expense will Hermesch Company report if it uses the direct

asked by vivian on November 1, 2010
20. ## Chemistry

A compound containing only C, H, and N yields the following data. (i) Complete combustion of 34.8 mg of the compound produced 33.3 mg of CO2 and 40.9 mg of H2O. (ii) A 66.3-mg sample of the compound was analyzed for nitrogen by the Dumas method, giving

asked by Darrel on November 20, 2012
21. ## Writing

Please help! 1) Using a single formatting _____ helps to make reading researched information easier;it lets the reader know what to expect. A. Citation B. Text C. Style D. Website My answer was B I got it wrong 2) when creating a writing plan,which of the

22. ## physics

Question 01: 2.0g of Nitrogen gas is at 270C in a fixed volume. If 20% of its total internal energy is due to rotation what is the average velocity of nitrogen molecules? What will be the temperature 2.0 g of Helium gas in a fixed volume if the average

asked by hash on February 12, 2017
23. ## Thermodynamics

Hi, I am trying to do a prelab and I am really stuck... I have no idea how to go about this, I don't knwo if its worded funny or waht, so any help would be greatly apprecaited. The question is: (This is for a bomb calorimeter of constant volume) Benzoic

asked by Tracy on October 3, 2007
24. ## math

can someone write out the equations so i can solve it. Please... #1 A biologist recorded 9 snakes on 21 acres in one area and 13 snakes on 47 acres in another area. Let y be the number of snakes in x acres. Write this one in a linear equation for the

asked by jas on June 3, 2007
25. ## math

: Cost of machine \$ 90,400 Residual value \$ 3,400 Useful life 5 years Estimated units machine will produce 100,000 Actual production: Year 1 Year 2 54,000 11,500 Use MACRS table. Depreciation Expense Method Year 1 Year 2 what is the Units of production

asked by Anonymous on January 29, 2014
26. ## French #2

Can someone please check my work? Last Saturday different people did different things. Explain what each one did by completing the sentences with the appropriate "passé composé" forms of the verbs in the list. Be logical. acheter assister ranger laver

asked by Larry on May 12, 2009
27. ## STATISTICS

A manufacturer has received complaints that aging production equipment is forcing workers to work overtime in order to meet production quotas. Historically, the average hours worked per week at the company is normally distributed, with a mean of 40 hours

asked by KENYAN on May 6, 2012
28. ## Calculus

Suppose that 5 J of work is needed to stretch a spring from its natural length of 28 cm to a length of 36 cm. (a) How much work is needed to stretch the spring from 32 cm to 34 cm? (Round your answer to two decimal places.) (b) How far beyond its natural

asked by Kaitlyn on January 23, 2016
29. ## mathamatics

can i have a list of times tables And your question is? 1> Googal stands for how many zeros after one? 2> Who invented logarithm for fast calculation? what is the product of 9 & 6? How could I work a problem that is: I have a bacteria that replicates every

asked by jake on August 31, 2005
30. ## Algebra

40. Solve for the variable in the equation 3(-2 - 3x) = -9x -4. x=2/3 ?

asked by y912f on May 7, 2010
31. ## Math

How do I solve for x in: 1/x > x I need to do it both algebraically and graphically, but I'm not sure how to do so. Thanks!

asked by Anonymous on November 19, 2014
32. ## Calculus

solve the equation y'=(sqrt(x))/2y

asked by Arie on May 18, 2016
33. ## geometry

how to solve angle numbers?

asked by Zackary on September 6, 2013
34. ## Math

How do I solve for x in: 1/x > x I need to do it both algebraically and graphically, but I'm not sure how to do so. Thanks!

asked by Anonymous on November 19, 2014
35. ## math

solve 3x^2-5x-11=0 Find the x intercepts of f(x)=3x^2-5x-11

asked by Allison A on November 24, 2011
36. ## Algebra

Solve using the addition principle: 2x+9>x+14, x+9-9> 14 - 9, x>5 is this right?

asked by A. W. on February 15, 2009
37. ## geometry

3x + y + 7 + 90 = 180 deg. how to solve?

asked by john on February 13, 2012
38. ## Math

3 Solve the simultaneous equations x² + y² = 34 x – y = 2

asked by drumstick on November 14, 2018
39. ## Algebra

Solve. Ten graph. 4 x > 12 -

asked by Kim on October 30, 2008
40. ## Algebra

Substitute the numbers in x and solve. 1) 4/5^x -2,-1,0,1,2 2) 2^x -2,-1,0,1,2

asked by Emma on September 27, 2012
41. ## Math

25=10t-0.83t^2 Solve for t

asked by Anonymous on November 14, 2018
42. ## pre calculus

solve nonlinear inequality x^4 > x^2

asked by Danielle on March 3, 2014
43. ## Maths

To solve: 3×10tothepower8/5×10tothepower9

asked by Ash on July 4, 2017
44. ## Math

Solve: x= sqrt(10x-4-2)

asked by Shawn on October 27, 2008
45. ## Algebra

solve using the quadratic formula 2x^2 +6x-3=0

asked by Marie on May 6, 2010
46. ## ALG 2

|X-8|is greater than but equal to 3...solve

asked by tyneisha on September 26, 2012
47. ## algebra

how would i solve this rational equation y+2/y=1/y-5

asked by Danielle on May 5, 2010
48. ## maths m

solve -16t^2 +64t+6 the value of t is 2

asked by Anonymous on October 10, 2010
49. ## math

solve for x. 2450 * 4.80L= 19.2L * x

50. ## Algebra

literal equation: solve for x ax=bx-c

asked by aaron on September 3, 2013
51. ## Math

please solve 30 is 2 less than____ 35 is more than 40 ____

asked by Kankona Dubey on October 17, 2015
52. ## college math

solve the equation 1). (x+4)(x-12)=5x 2). 4x^2+2x-14=16-17x

asked by luna on November 22, 2011
53. ## algebra

solve by factoring a^2-4ab-8b^2?

asked by Besiane on March 21, 2014

3x^2-x-16=0 Use the quadratic formula to solve this.

asked by Hayley on March 21, 2012
55. ## Algebra

Solve for M: 3P = 12C + 10MC

asked by Connor on September 3, 2013
56. ## algebra

Solve this quadratic equation x^2 + 5x + 3 = 0

asked by steven on November 21, 2014
57. ## Algebra

multiply (n^3+8)(n-4) can you give me an example on how to solve this please

asked by MissPatte on June 25, 2014
58. ## Algebra

multiply (n^3+8)(n-4) can you give me an example on how to solve this please

asked by Jane on June 25, 2014
59. ## Pre-Calc

Solve for x: log base27 (2x-1) = 4/3

asked by Aly on March 2, 2014
60. ## math

asked by Houston on October 14, 2007
61. ## Math

Solve by completing the square x^2+4x-21=0 Help how do I do this???

asked by Allison A on November 22, 2011

asked by Jen on January 24, 2011
63. ## college algebra

(x+5y)(7x+3y)How do I solve this. I know I have to somehow combine the x and y but can't remember.

asked by Joe on September 29, 2012
64. ## Maths

Solve the initial value problem 10(t+1)(dy/dt)+9y= 9t for t > -1 with y(0)=15

asked by Lisa on April 11, 2011
65. ## Math

Solve: 9x^2 over 144 - 4 over 25 I came out with 18/24 - 8/10 but I don't think this is right.

asked by Hannah on August 11, 2009
66. ## Maths

Solve the initial value problem t(dy/dt)+2y=9t with x(1)=4

asked by Lisa on April 11, 2011
67. ## Math Help

Solve the following proportion. r/5=9/21 A. r=9 B. r=2.14 C. r=11.66 D. r=37.8 Is the answer B? Thank you

asked by callie on November 20, 2014
68. ## math

how do I solve problems like this? 64x1 7/24

asked by jessica on July 19, 2017
69. ## algebra 1

Solve the rational equation below. 1/x-2+ 2x/(x-2)(x-8)=x/2(x-8)

asked by Jan on April 24, 2013
70. ## Algebra

47. Solve for the variable in the equation: 3.4 = -13.6 + (-3.4c) + 1.7c c=-10 That is what I got.

asked by y912f on May 7, 2010
71. ## pre calc

use the quadratic formula to solve for x. x^2+2x+5-0

asked by kate on October 29, 2009
72. ## algebra 1

Solve the rational equation. 3/(x)+6/(x+3)=8/(x+1)

asked by Jen on April 24, 2013
73. ## Algebra

3Z+6Z+7=29-4 Please shoe how to solve this Problem.

asked by Rusty on October 16, 2007
74. ## Calculus

Solve the differential equation f"(x)=x^2, f'(0)=3, f(0)=-1

asked by Anonymous on February 5, 2015
75. ## Algebra(repost of one question)

Bobpursley: 89. Solve for x in the equation: (6/7)x - 6 = -2 I got x=28/3

asked by y912f on May 1, 2010
76. ## math

6. Solve by factoring. m² + 8m + 7 = 0 (1 point)8, 7 –7, 1 *–7, –1 7, 1 7. Solve by factoring. n² + 2n – 24 = 0 (1 point)–12, 2 –2, 12 *–6, 4 –4, 6 Please Help

asked by James on February 26, 2013
77. ## Mathmatics

how do i solve 5x-14less than or greater to 2x+7

asked by Ashley on November 4, 2009
78. ## math analysis

how do you solve sinx=cosx??

asked by Itzel on May 2, 2010
79. ## Trig

How do I solve this problem? tan (30° + x)

asked by Abby on May 2, 2010
80. ## Math

I don't get how to solve this problem!help 3x(2x^3y) ^6

asked by Emily on October 20, 2015
81. ## Algebra 2

Solve this using "inverse of the matrix". 3x-y=12 -x+8y=-4

asked by Mari on November 4, 2009
82. ## Algebra

Solve for x: logx +log(x-5)=2

asked by Fernando on September 21, 2012
83. ## Maths

asked by Taldil on February 26, 2013
84. ## Algebra 1

how do I solve 5x^2+5x-60=0 using the quadratic formula?

asked by Blessing on June 15, 2017
85. ## ALGEBRA 1

How do I solve "-2n-8n+42=0" using the quadratic formula?

86. ## Algebra

Solve (10x^3+30x-20)÷(-5x+5) 2x^2-2x+4 -2x^2-2x-4 -2x^2+2x+4 2x^2+2x-4

asked by Daniel on May 10, 2016
87. ## algebra

solve the given formula for the variable a. r=ab/a+b

asked by jill on October 22, 2015
88. ## algebra

Solve. 10/(3x) + 4/3 = (7 + x)/2x A) x = 1/3 B) x = 17/5x C) x = 1/5 D) x = 1/6 PLEASE HELP MRS. SUE!

asked by lynn on April 22, 2013
89. ## Math

Solve the proportion G/56=2/8 A)g=14 B)g=16 C)g=13 D)g=50(I pick this)

asked by I need help on March 15, 2016
90. ## algebra

how do you solve this algebra problem 8(2x-3)-6x if x = 3

asked by shantonia on September 12, 2013
91. ## Algebra

Solve the quadratic equation. x^2 – x = 56

asked by JR on November 5, 2009
92. ## algebra 2

solve for x: (exact answers) 5^(2x+1)-26(5^x)+5=0

asked by emily on September 19, 2012
93. ## Math

Solve the proportion 5/8=y/40 A)y=25 B)y=13(I pick this) C)y=11 D)y=10

asked by I need help on March 15, 2016
94. ## Math

Solve using eliminating method2) 3x-5y=15 x-2y=8

asked by Anonymous on June 11, 2017

how do you solve c=3d-27 ; 4d+10c=120

asked by wendy on October 26, 2010
96. ## math

How to solve divide 90 by the sum of 7 and 8

asked by nene on August 12, 2016
97. ## math

Solve the equation: there are 2 solutions for x. -3/x=x/-3 also x/3=4/x+1 thank you much

asked by iris on September 25, 2010
98. ## math problem

asked by Clenisford J on January 22, 2012
99. ## algebra

Solve for y, xy + x = -3 How do you do this? I can't seem to come up with the correct answer...

asked by Andrea on September 26, 2012
100. ## Algebra

I need help with this ASAP please Solve D=ABC for B B=?

asked by Tammy on September 23, 2012