# 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 385
1. ## Physics

A popular carnival ride consists of seats attached to a central disk through cables. The passengers travel in uniform circular motion. As shown in the figure, the radius of the central disk is R0 = 3.00 m, and the length of the cable is L = 1.43 m. The

asked by Jackie on December 1, 2011
2. ## physics

How do i go about this question? Suppose a car is traveling at 20.0m/s, and the driver sees a traffic light turn red, After 0.530s has elapsed (the reaction time), the driver applies the brakes, and the car accelerates at 7.00m/s2. What is the stopping

asked by manny on August 16, 2007
3. ## Economics

I picked C as the answer to this question but I am not sure? The difference between production possibilities frontiers that are vowed out and those that are linear is that: A)bowed out production possibilities frontiers illustrate tradeoffs, whereas linear

asked by G on May 6, 2008
4. ## statistics

An insurance company charges its policy holders an annual premium of \$200 for the following type of injury insurance policy. If the policy holder suffers a "major injury" resulting in lengthy hospitalization, the company will pay out \$15,000 to the injured

asked by Jillian on September 24, 2012
5. ## Math-Stats

An insurance company charges its policy holders an annual premium of \$200 for the following type of injury insurance policy. If the policy holder suffers a "major injury" resulting in lengthy hospitalization, the company will pay out \$15,000 to the injured

asked by Jillian on September 24, 2012
6. ## algebra

5 Times the numerator of the solution to 7|8-3h|=21h-49

asked by Anonymous on March 14, 2010
7. ## Chemistry

what is the pH solution in which 15 mL of 0.10 M NaOH has been added to 25 mL of 0.10 M HCl

asked by Veronica on June 10, 2014
8. ## Algebra

How do you find a quadratic equation if you are only given the solution?

asked by Anonymous on June 2, 2010
9. ## Science

0.02mole of the HCL and in 2leter of the pH solution

asked by Anonymous on August 20, 2018
10. ## Chemistry

Which THE PH VALUE OF A solution 0,01 mol/l a monoacido that presents ka= 1×10-6

asked by Angelica on January 19, 2016
11. ## math

Use quadratic formula (3x/x-1)+(2/x)=4 the solution set is ( , )

asked by Anonymous. on August 23, 2014
12. ## CHEM

Calculate the pH of a .7 M solution of ammonium chloride

asked by Heather on September 22, 2011
13. ## Chemistry

A Solution Has A PH Of 3.4.What Is Its Hydrogen Ion Concentration?

asked by Ola on October 22, 2016
14. ## science

1 what is mean by hypertonic, isotonic and hypotonic solution.

asked by sangam on June 26, 2008
15. ## math

What is the value of t in the solution to this systems of linear equations? 2s – 3t = –1 3s – 4t = 0 a)–5 b)3 c)-7/3 d)4

asked by tom on April 2, 2013
16. ## Pre Calculus

Determine an approximate solution to the inequality 2^x=x^2.

asked by Hanu on May 3, 2014
17. ## Math

2.which value is a solution of the equation 3-2x=-5? a.2 b.4*** c.-2 d.1/5 NEED ANSWER ASAP

asked by THAT CAZY GIRL on October 4, 2017
18. ## chemistry

. What is the pH of a solution in which 15 mL of 0.10 M NaOH is added to 25 mL of 0.10 M HCl?

asked by Anonymous on March 19, 2017
19. ## Chemistry

Calculate the ph of a solution that is 0.157m HCI?

asked by James on May 4, 2016
20. ## chemistry

How we make 0.02ppm solution in 25ml?

asked by Usama munir on October 20, 2016
21. ## chemistry

how to find ph of aqueous solution if your only given the concentration

asked by aliceallyx3 on October 19, 2012
22. ## Chemistry

What is the pH of a saturated zinc hydroxide solution?

asked by Julian on March 18, 2013
23. ## math

is secA*cosA =1 for all A where 0

asked by mkc on July 29, 2016
24. ## Chemistry

What is the hydrogen ion concentration of a solution whose pH Is 4.10

asked by Abasiekeme udoh on March 4, 2019
25. ## Science

How will you prepare a 200cm³ of 70% of ethanol solution?

asked by Chalette on July 25, 2018
26. ## Algebra

Find the missing coordinate if (-2/3, is a solution of -6x + 7y = 11

asked by John on December 9, 2015
27. ## Chemistry

Calculate PH of 0.05 M solution of ammonium acetate

asked by Jane on July 31, 2014
28. ## algebra

Is it possible to have different quadratic equations with the same solution? Explain.

asked by becky on March 2, 2008
29. ## Math

Which ordered pair is a solution of the equation y=-5+4 (2,14) (5,-29) (3,-19) (5,-21)

asked by Anony on September 26, 2017
30. ## math

What is the value of t in the solution to this systems of linear equations? 2s – 3t = –1 3s – 4t = 0 a)–5 b)3 c)-7/3 d)4

asked by joe on April 3, 2013
31. ## Math

determine which ordered pair is a solution of y -5x 10

asked by meow meow kit kat on March 6, 2019
32. ## Algebra

Thank you for answering (x+20)(x -10)(x+11)>0. How do I write the solution set of {x| }

asked by Daniel on May 30, 2010
33. ## Chemistry_DRBob222! Thanks

Thank you very much indeed for your attention and regard to my solution. Bye

asked by Ramtin on April 21, 2014
34. ## Calculus

Find the particular solution of the differential equation y"(x) - y(x) = 1+e^x Please help.

asked by Jane on October 16, 2009
35. ## Math Problem

Is this ordered pair a solution of the inequality? (9,17);8x-9x>2

asked by Lavern on January 15, 2012
36. ## chemistry

difference between solution and pure substance

asked by Anonymous on February 21, 2013
37. ## chemistry

1. How many grams of NaCl are present in 15 mL of a 2.0% solution?

asked by alexa on October 19, 2012
38. ## Chemistry

What is the solvent in70% of alchol solution?

asked by Ridwan darebo on October 25, 2016
39. ## chemistry

What weight of Ca(OH)2 is necessary to prepare 3,500ml of 0.7M of Ca(OH)2 solution?

asked by jen on August 26, 2018
40. ## Chemistry

How to prepare 250ml of 2.5m solution of HCL

asked by Zoe on October 25, 2016
41. ## Math

Determine which ordered pair is a solution of y = 2x - 3 1. (-2, 7) 2. (0, 3) 3. (-4, -11) 4. (5, -7)

asked by Anonymous on April 1, 2016
42. ## math

find the value of k such that the equation e^(2x)=krootx has exactly one solution.

asked by tom on April 4, 2013
43. ## MAT 110

How many milliliters of a 25% solution contain 10 g of the pure drug?

asked by Vickie on December 7, 2010
44. ## CHEm 1442

Calculate the pH of a 0.21 M CoCl3 solution. The Ka value for Co(H2O)63+ is 1.0 10-5.

asked by pinki on March 12, 2010
45. ## Ordered Pairs ASAP

3. Which ordered pair is a solution of the equation y=x-3 **(5,2) 4. Which ordered pair is a solution of the equation y=5x **(-2,10) 5 Which ordered pair is a solution of the equation y=-7x+2 **(1,-7)

asked by Mate on October 3, 2017
46. ## Math

How do i know if an equation has no solution or all real numbers? for example 6(x+4)=6(x+5)

asked by Bryan on November 13, 2008
47. ## Math

Find the solution set of the equation {x^2+y^2=34 {x+y=2

asked by Alexander on July 16, 2013
48. ## math

dy/dx+(1/x)y=3x^2y^3 find the solution using Bernoulli equation

asked by tish on January 24, 2017
49. ## algebra

I want to make sure that I understand how to do this problem. What is the value of x if 3/2x-2=15 + x? Would the solution be 2/9?

asked by anonymous on May 27, 2010
50. ## Chemistry

Find the H30 concentration of the following solution ph=3.00 would i (1*10^-14)/3.00

asked by Amy on June 6, 2011
51. ## chemistry

What are the concentrations of H3O+ and OH- and what is the pH of a 0.15 M solution of Na2CO3 (at 25 °C).

asked by darren on March 15, 2011
52. ## Chemistry

How would you analyze a solution known to contain Hg22+ and Cu2+?

asked by Kelly on March 11, 2012
53. ## maths

what is the solution ,find the sum of the first five terms of the g.p 2,6,18

asked by nengi on September 25, 2017
54. ## Chemistry

How can we recover NaNO3 from an unsaturated solution

asked by NA on September 25, 2017
55. ## math

What is the value of t in the solution to this systems of linear equations? 2s – 3t = –1 3s – 4t = 0 a)–5 b)3 c)-7/3 d)4

asked by tom on April 2, 2013
56. ## algbera

which ordered pair is a solution of the equation ? 3x+y=0 A.(-1,3) B.(3,-2)c.(-2,3) D.(3,-1)

asked by lauren on December 9, 2009
57. ## Math

sqrt of 450 simplified with solution

asked by Yoli on March 20, 2017
58. ## Mathematics

Which equation has (2,-1) as a solution. Y=2x - 1•• Y=x + 3 Y=x - 3 Y=-2x+1 Check my answer

asked by Tula on April 1, 2016
59. ## CHEMISTRY

What is the pH of a solution with [H3O+] = 1 x 10-9 M? My answer is pH=9. is that correct

asked by KKK on December 1, 2014
60. ## Math

Find the solution set of the equation {x^2+y^2=34 {x+y=2

asked by Alexander on July 16, 2013
61. ## Maths

If n(AuBuC)=12 and n(AuB)=8,find n(A'nB'nC). Solution n(A'nB'nC)=12 -8 =4

asked by Vin Mwale on December 10, 2015
62. ## Math

Find the solution set of the equation {x^2+y^2=34 {x+y=2

asked by Alexander on July 16, 2013
63. ## Math

Find the solution set of the equation {x^2+y^2=34 {x+y=2

asked by Alexander on July 16, 2013
64. ## chemistry

how many moles of CO2 in .05M solution in .2L?

asked by Stacey on June 7, 2011
65. ## chemistry

find the concentration of HCL if the pH of the solution is 0.50

asked by Jessica on March 17, 2011
66. ## chemistry practical

Why? alkaline solution didn't puppet out.

asked by Vishal Hood on July 15, 2016
67. ## help me plz math

which ordered pair is not in the solution set of y>2x+1? 1: (1,4) 2: (3,8) 3: (1,6) 4: (2,5)

asked by Anonymous on January 11, 2009
68. ## Chemistry

If a 0.200M solution of an acid, HX, has a pH=1.00, The Ka= a. 2 x 10^-1 b. 2 x 10^-2 c. 1 d. 1 x 10^-1 e. 1 x 10^-3 This is what I did: HX H + X 10^-1=[H] 0.1=[H] [H]=[X] Ka = (H)(X)/HX Ka = (0.1)(0.1)/0.200 Ka = 0.05

asked by Anonymous on January 24, 2018
69. ## Algebra

Determine which ordered pair is a solution of y=x+2/5. A(0,0) B(-1,2/5) C(1,2/5) D(2,2 2/5)

asked by Mellisa B on August 29, 2016
70. ## Algebra

x^2-25 over x^2+7x, divided by x^2+7x+10 over x^2+9x+14. I found the solution to be x-5 over x, is this correct?

asked by Anonymous on September 23, 2009
71. ## Differential Equations

Hello, I am needing help to find the general solution to: dy/dt + y = te' Thanks!

asked by Thomas on January 27, 2019
72. ## CHEMISTRY

What is the [H+] in a 0.10 M solution of ascorbic acid,C6H8O6?

asked by James on April 25, 2012
73. ## Science

13.5g aluminium changes to Al^3+ in solution by loosing ..... electrons.

asked by Chemistry question on January 4, 2016
74. ## Algebra

what is the solution to (4 x 10^3) x (6 x 10^6), written in scientific notation? A. 24 x 10^9 B. 2.4 x 10^9 ** C. 24 x 10^18 D. 2.4 x 10^10 Is this right?

asked by Help please on October 4, 2016
75. ## Algebra

How do you know there is no real solution to the quadratic equation x2+x+14=0?

asked by Matisha on April 17, 2016
76. ## chemistry

How many grams of NaOH are there in 2.5L of a 0.343M solution?

asked by twynna on February 9, 2011
77. ## chemistry

If 16.0 mL of 8.5 ✕ 10-2 M HClO4 is added to 22.0 mL of 7.6 ✕ 10-4 M KOH, what is the pH of the solution?

asked by Elizabeth on February 23, 2014
78. ## Math

Tell Whethter the givin number is a solution of -5 < n. 3. 8 4. -8 5. -4 6. 4

asked by Dejon on January 10, 2009
79. ## Chemistry

Assuming complete dissociation, what is the pH of a 3.73 mg/L Ba(OH)2 solution?

asked by Shardai on November 11, 2013
80. ## Math for Liberal Arts Major

Find the solution set for the following inequality: x+1>1/2x-11

asked by Mary on February 27, 2012
81. ## Science

Describe a solution,suspension, and colloid

asked by Frances on December 8, 2011
82. ## math

which ordered pair is not in the solution set of y>2x+1? 1: (1,4) 2: (3,8) 3: (1,6) 4: (2,5)

asked by Anonymous on January 11, 2009
83. ## chemistry

Calculate the pH in a 0.00500 solution of NaOH.

asked by JC on February 21, 2011
84. ## Math

Find the solution set for the equation. |x + 6| = 0

asked by ReRe on February 22, 2010
85. ## Math

Which ordered pair is not a solution of y= -4x -9 A(-9,27) B(3,-21) C(-6,15) D(5,-28) I have no idea how to do this help please

asked by Anon on May 26, 2016
86. ## Chemistry

what is the concentration of Sr(2+) in a saturated solution of St(IO3)2.

asked by Sithembinkosi Suriwisu on July 14, 2019
87. ## Chemistry

How many ml of 1M HCl would you need to make 50.0 mL of 0.125M solution?

asked by Danielle on February 22, 2011
88. ## Chemistry

How many ml of 1M HCl would you need to make 50.0 mL of 0.125M solution?

asked by Danielle on February 22, 2011
89. ## Chemistry

If 16.0 mL of 8.5 ✕ 10-2 M HClO4 is added to 22.0 mL of 7.6 ✕ 10-4 M KOH, what is the pH of the solution?

asked by Jessibell on February 23, 2014
90. ## chemistry

0.0386mol glucose in 88.0ml of solution

asked by cynthia on December 8, 2012
91. ## College Chemistry

Determine the pH of a solution that contains 5.3*10^-2 M in HClO4 and 3.0*10^-2 M in HCl?

asked by Mickey on February 26, 2011
92. ## math

decide if the given number is a solution to the given equation. x/4 = 5;20

asked by Diana on September 4, 2009
93. ## Chemistry

what is the PH of a solution of .1 M NAN3 that disassociates into HN3

asked by Molly on March 4, 2015
94. ## Chemistry

Calculate the pOH of a 0.410 M Ba(OH) solution.

asked by Anonymous on March 4, 2015
95. ## Chemistry

Find the % ionization if the pH of a 0.10 mol/L solution is 4.5

asked by Korianna on April 14, 2016
96. ## Alegebra 1

Determine whether (2,11) is a solution to y=17x-13. Thank you before hand, for your help.

asked by esther on December 19, 2010
97. ## 10THGRADE CHEMISTRY

HOW WOULD YOU PREPARE ML OF A 0.250M SOLUTION OF Ca(NO3)2?

asked by PORSHA on February 8, 2011
98. ## Algebra

Determine which ordered pair is a solution of y=x+2/5 (0,0) (-1,2/5)****** (1,2/5) (2,2 2/5)

asked by Trish on September 8, 2015
99. ## chemistry

Calculate the pH of a 0.0019 M HNO3 solution.

asked by krystal on February 29, 2012
100. ## chemistry

What would be the pH of 0.568 g of HClO4 per 250 mL of solution?

asked by Vaneza ASAP on February 26, 2011