# 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 14
1. ## algebra

determine if (-5/6, -1) is a solution to 6x-5y= -10 show work

asked by nicole on November 1, 2011
2. ## Algebra

Determine if (-4/5,3) is a solution to -5x+7y=25. Show work

asked by Rand on April 25, 2012
3. ## Pre-Algebra [urgent!]

I can't find the solution to this problem; can someone please show me how to solve it step-by-step? Solve the equation for y in terms of x: 1. -8x + 5y = 10 Thanks! -MC

asked by mysterychicken on May 4, 2009
4. ## I need 2 get these prob. b4 they get 2 me on test!

A father gives his son a ride by pulling a sled across the rough snow. The father runs across the snow with a constant acceleration while pulling the sled at F = 75.0 N, at 30 deg. above the horizontal. The combined mass the sled and son is 30.0 kg. The

asked by Matt (Newton's laws) on February 20, 2007
5. ## Math

Please explain in detail how to solve the following problem using elimination: It takes a florist 3 h 15 min to make 3 small centerpieces and 3 large centerpieces. It takes 6h 20 min to make 4 small centerpieces and 7 large center pieces. How long does it

asked by Jane on December 29, 2011
6. ## ALGEBRA 1

Solve by whatever Method 1. X^2 +8X = -16 X^2 +8X +16 = -16 +16 (X +4)^2 =0 X+4 =+/- SQRT 0 X=-4+/- 0 X=-4, X=4 2. 3x^2-2x-5=0 X=-b+/- sqrt (b)^2-4ac 2a a=3 ,b=-4,c=-5 X=-(-2)+/- Sqrt (-2)^2-4(3)(-5) 2(3) X=2+/sqrt64 = 2+/-8 6 X= 2+8=10/6=1 2/3,

asked by DANIELLE on April 19, 2007
7. ## maths

q1) 2cos2x is f(x) -square root3 is g(x) solve f(x)-g(x)=0 to get points of intersection in x is between 0 and 180degrees q2) a) write the equation cos2x + 8cosx+9=0 in terms of cosx and show that for cosx it has equal roots q2b) show that there are no

asked by MR MATHEW MATICS on December 5, 2009

1 )3x + 8y = 1 7x + 4y = 17 Answer: (3,1) 2) -3x + 5y = -7 9x + 2y = 38 Answer: (4,1) 3) 7r + 3s = 13 14r - 15s = -16 Answer: (1,2) 4) 2x - 7y = 42 4x - 14y = 64 Answer: No Solution ?? 5) 9x + 12y = 15 3x + 4y = 5 Answer: Identity ?? 6) 2 = 4s - 3t 2 = 12s

asked by Veronica on February 25, 2009
9. ## College Algebra

5x+y=7 6x+7y= -9 Solve for system of equations. What is the solution? Is it inconsistent or consistent? Is it dependent or independent?

asked by LeAnn on November 18, 2009
10. ## Pre-Calculus/Trigonometry

Solve the following system of equations algebraically. Verify the solution by using matrices. 8x-2y=5 -12x+3y=7

asked by Anonymous on September 30, 2014
11. ## math

solve the system of equations algebraically for real values of x and y { x+y=16 x^2+y^2=128 a. (6,6) b. (8,6) c. (9,8) d. (8,8) e. no solution

asked by laura on August 29, 2016
12. ## Math

Solve each system by graphing. Check your solution. 11) y=1/2 x + 7 y=3/2 x + 7 13) y=x - 4 y= - x Can someone help me understand help me figure it out these two question??

asked by that emo girl! on January 29, 2018
13. ## math homework help please?!!

solve the system of equations algebraically for real values of x and y { x + y = 16 x^2 + y^2 = 128 a. (6,6) b. (8,6) c. (9,8) d. (8,8) e. no solution

asked by ottilie on August 30, 2016
14. ## Algebra

I have been trying to solve this for two hours help. Determine whether the ordered pair (-5,2) is a solution of the following system of equations x - 3y = 1 y= 3x - 17

asked by slomo on January 7, 2015
15. ## carson high school

solve by elimination 5r-3s=19 2r-6s=-2

asked by rebecca on September 29, 2016
16. ## math

solve by elimination: 2x-3y=1 3x-2y=-6

asked by unknown on June 14, 2019
17. ## Algebra

PLease solve by elimination. 2x+4y=8 5x+y=-7

asked by Keyaria on January 27, 2010
18. ## Algebra

To solve by elimination 4x-6y=10,x+y=0

asked by Ann on September 24, 2016
19. ## Math116

Solve by elimination 5r-3s=13 3r+5s=69

asked by Rissa on March 10, 2010
20. ## MATH

Solve by using elimination: 7x - 2y =3 2x +y = 4 ?????????????????

asked by Mathew on January 13, 2011
21. ## MATH

Use elimination to solve. X+5y=17 -4x+3y=24

asked by MED on October 18, 2015
22. ## Math

Can you please help me with this one!! Solve by elimination, 3x+6y=6, 2x-3y=9

asked by Alex on May 1, 2014
23. ## algebra

Solve by elimination 7r-5s=41 5r+7s=61

asked by Smith on October 5, 2010
24. ## Math

Solve by elimination x + 2y = -7 x - 5y = 7

asked by Tyler on April 17, 2014
25. ## alg

9x +5y=34 8x-2y=-2 solve by elimination

asked by kim on February 15, 2011
26. ## Algebra

Solve by elimination. -4x + 9y = 9 x - 3y = -6

asked by Kylie on March 27, 2015
27. ## alg

9x +5y=34 8x-2y=-2 solve by elimination

asked by kim on February 15, 2011
28. ## algebra

-3x-5y=-6 6x+5y=-34 how do i solve this using elimination?

asked by jc on December 12, 2013
29. ## alg.2

solve by elimination x+3y=0 2x+6y=5

asked by ana on January 19, 2011

31. ## Algebra

x+y^2=5 2x^2+y^2=6 Solve by elimination.

asked by Anonymous on March 23, 2014
32. ## Hellpppp calculus

Solve by elimination. 0.1x + 0.3y = 1.5 0.6y + 0.2x =-1.2

asked by Emily on November 15, 2017
33. ## Algebra 1- Math

Solve by elimination 2x-3y=-3 3x-3y=18

asked by Anonymous on February 7, 2013
34. ## Algebra 1- Math

Solve by elimination 2x-3y=-3 3x-3y=18

asked by Anonymous on February 7, 2013
35. ## algebra

solve by elimination 2r - 9s = -17 9r + 2s = 51

asked by jackie on July 5, 2010
36. ## algebra

solve by elimination 2r-5s =-22 5r+2s = 32

asked by Jackie on August 20, 2010
37. ## Math

-x+5y=13 x-y=15 (solve by using elimination)

asked by Makayla on February 8, 2016
38. ## math

Solve by elimination 8x-9y=8.5 7y-2x=-4.5

asked by wendy on July 11, 2010
39. ## Math problem

solve by elimination 5x+2y=-11 7x-3y=13

asked by Lavern on January 16, 2012
40. ## math

solve by elimination 5x+3y+5z=-16 2x+5y-z=-26 x-4y+2z=10

asked by me on February 19, 2011
41. ## algebra

Solve using elimination. 2x + 6y = 6 2x + 3y = 12

asked by josh on June 12, 2019
42. ## Algebra 1

How to solve this elimination 3x + y = 20 x + y = 12

asked by Brayan on January 21, 2008
43. ## algebra 1

-4x + 7y = -3 -4x – 3y = 7 solve using elimination

asked by math GENIUS needs help on November 20, 2016
44. ## algebra

solve by elimination x+6y=12 -x+7y=1

asked by babs on July 22, 2011
45. ## algebra

solve by elimination x+6y-12 -x+7y=1

asked by babs on July 22, 2011
46. ## Math

6-1/5y is less than or equal to 7 Please help me solve this and show your work thanks.

asked by Kim on February 22, 2012
47. ## Math

asked by Carly on February 16, 2012
48. ## Math

asked by Sadie on February 15, 2012
49. ## I really need help..(Algebra)

Solve the equation. Show your work. 3m^2=-6m

asked by Mari on March 7, 2012
50. ## Math - Logarithm

Solve the following equation. Please show all of your work. 5 ln 2x = 10

asked by Armando on June 5, 2011
51. ## ALGEBRA

SOLVE THE FOLLOWING EQUATION FOR U 4U + 8 = -12 could you please show the work

asked by Barney on November 10, 2007
52. ## Algebra

solve by substitution. Please show all work. -6x+5y=1 6x+4y=10

asked by Braxston on August 14, 2014
53. ## algebra

How do you solve the following equation? I know x= 20 but do not know how to show the work. Please help...

asked by Lisa on October 13, 2008
54. ## algebra

Solve the following equation. Show all your work. (x)/(x-2)+(x-1)/(x+1)=-1

asked by me on May 22, 2019
55. ## algebra

solve the following equation 5x + 4y = 12 Please show work... Thank You!!!

asked by Sophie on January 2, 2009
56. ## Math

y = (x^2.7/9 + 7/x^2.7) (9x-1) dy/dx solve derivative and show work

asked by Tiffany on October 22, 2013
57. ## alg

solve the following inequality x^2(8+x)(x-5)/(x+5)(x-2)>/=0 please show work

asked by MYA on September 5, 2012
58. ## Math

w/4-w/5-1/3=16/15 Please help me solve this and show your work. I Need it ASAP

asked by Haylie on March 8, 2012
59. ## pre-algebra

asked by Lucy on September 20, 2010
60. ## college math

solve these proportions and show work: x/2 = 1/2 plus 1 Thanks

asked by Tina on November 20, 2016
61. ## aLGEBRA 2 help please would appreciate

X over X+3 subtract X over X-3 = X^2 + 9 over X^2 -9 solve for x. show all work thank you

asked by lisa on October 1, 2013
62. ## Math

Solve the inequality. Show all work 2x^2+5x

asked by Rick on October 25, 2011
63. ## math

9(x-5)=4x-5 solve for x. please help me with this one and show the work so i can understand

asked by kacey on April 24, 2012

Solve and show work for each proportion. 2x-2/14 = 2x-4/6 x+2/6 = x-1/12

asked by Brianna on October 17, 2011
65. ## aLGEBRA 2 help please would appreciate

X over X+3 subtract X over X-3 = X^2 + 9 over X^2 -9 solve for x. show all work thank you

asked by lisa on October 1, 2013
66. ## algebra

Solve the equation 3x-3=3. Show all the work.

asked by Josey on July 14, 2011
67. ## algebra

Solve: 4/s = -2/9 The answer is -18 Show work of how to get -18 Thank you!!

asked by Kyle on March 22, 2017
68. ## calculus

solve the inequality e^x+e^x-x=6 can you show work

asked by Heather on January 6, 2013
69. ## algebra

solve the equation. please show work 3x^2-2x-4=0

asked by candace on December 11, 2009
70. ## algebra

Solve the following equation for p. Show all of your work. r = 4q - 5p over 9

asked by kay on March 28, 2011
71. ## math

25/155 = 60/x solve for x show your work

asked by john on September 12, 2016
72. ## Algebra 2

solve 200(1+8%/12)^12 Please show work!!!!

asked by Alicia on December 17, 2014
73. ## algebra

solve the following equation show all work -16+2x/3=-8

asked by babygirl on September 6, 2011
74. ## Math

asked by Haylie on February 22, 2012
75. ## Pre- Algebra

Solve the equation. Be sure to show all of your work. 3x - 3 = 3

asked by Kameesha on November 3, 2011
76. ## Algebra; HELP PLEASE!

Solve the equation. Show your work. 3m^2=-6m

asked by Mari on March 7, 2012
77. ## Physics repost please check

Good morning. This is a repost. The system is telling me my calculations is incorrect. I thought a fresh pair of eyes would help. Please tell me what I am doing wrong. Suppose a monatomic ideal gas is contained within a vertical cylinder that is fitted

asked by Mary on April 20, 2007
78. ## algebra

A fish can swim 45 miles downriver in the same amount of time that it can swim 27 miles upriver. Solve for the speed of the current if the speed of the fish is 12 mph in still water. Show all of your work and explain your solution.

asked by Anonymous on April 30, 2017
79. ## Math

the sum of two numbers is 30. the difference of their squares is 180. find the two numbers by elimination method

asked by Anonymous on December 28, 2016
80. ## Algebra 1

1.) Which best describes a system of equations that has no solution? A. Consistent, independent B. inconsistent, dependent C. consistent, dependent D. inconsistent** 2.) How many solutions does this system have? 2x+y=3 6x=9-3y A. one B. none C. infinite**

asked by Anon on December 20, 2018
81. ## phyics

during a process, 21.6 MJ of heat is added to closed system. if the internal energy is increased by 59.6 MJ, how much work in Btu was done? is the work done on ro by the system?

asked by mikel on May 5, 2012
82. ## physics

during a process, 21.6 MJ of heat is added to closed system. if the internal energy is increased by 59.6 MJ, how much work in Btu was done? is the work done on ro by the system?

asked by john on May 5, 2012
83. ## Grade 11th Maths

This problem is related to Chapter-Sets. Please solve the question using x method. x method means x ∈ A ∩ B Q. If A⊂B, then prove that B'⊂A'

asked by Akash on June 29, 2010
84. ## Biostatistic

An enzymatic method for determining alcohol in wine is evaluated by comparison with a gas-chromatography (GC) method. the same sample is analyzed several times by both methods with the following results (% ethanol). Enzymatic method: 13.1, 12.7, 12.6,

asked by Jam on December 20, 2012
85. ## Math

I need help with number 19-21 I don't get it. 19. Workpad Note: In questions 19-21, remember to show all of the steps that you use to solve the problem. Be sure to use the text box where the question mark (?) first appears to show your mathematical work.

asked by Sorry no one here on November 26, 2018
86. ## ALGEBRA -- long division

Find each solution using long division. Show your work. Show that x + 1 is NOT a factor of... 2x^3 + x^2 - 11x - 30. Show that x - 3 IS a factor of 2x^3 - 11x^2 - 11x^2 + 12x + 9.

asked by Stephanie on September 25, 2008
87. ## Quadratic Equations and Functions

I started having trouble on part (c), and I need to know this before I can go onto the other problems. Plz help! The parabola shown at the right (no picture, sorry) is of the form y=x^2+bx+c. The graph's y-intercept is (0,2), the axis of symmetry is -2.5

asked by Emily on February 4, 2007
88. ## Calculus AB

Please help I'm stuck on this problem for the past hour. Define f(x)= { Ln lx-1l }/x A) show that f(c) is continuous at x=2 B)Where on the interval [-2,2] is f discontinuous? Show the work that leads to your conclusion. C) classify the discontinuities in

asked by Annie on September 15, 2016
89. ## math

A linear system may have a unique solution, no solution, or infinitely many solutions. Indicate the type of the system for th following examples by U , N , or I , respectively. 1. 2x+3y=5 4x+6y=10 2. 2x+3y=5 2x+4y=6 3. 2x+3y=5 2x+3y=6

asked by Anonymous on September 10, 2009
90. ## math

A linear system may have a unique solution, no solution, or infinitely many solutions. Indicate the type of the system for th following examples by U , N , or I 7x+3y= pi 4x-6y= pi^2 2x+3y= 0 4x+6y= 0 2x+3y=1 4x+ 6y= 1 x+y=5 x+2y=10 2x-3y=5 4x-6y=10

asked by Completely lost?! on September 10, 2009
91. ## algebra 2

1. Find the exact solutions of x^2 - (y-12)^2 = 144 and y = -x^2 Is the answer no solution? 2. Solve the system: y^2 - 4x^2 = 4 and y = 2x Solving this myself I got no solution, but someone who helped me with this question got the answer x= + i sqrt 2, -i

asked by huncho jack on May 3, 2018
92. ## Grade 11th Maths

This problem is related to Chapter-Sets. Please solve the question using x method. x method means x ∈ A ∩ B Q. If AUB=Ø, then prove that A=Ø,B=Ø

asked by Akash on June 29, 2010
93. ## Maths

1) Factorise x2 -6x +8 (the 2 is squared) 2) Hence solve this equation: x2 -6x +8 = 0 Also, what would the line look like on a graph with the equation y = 10/x Thankyou =) 1) x^2 - 6x + 8 factors are: (x - 2)(x - 4) -->look for possible factors of 8 and

asked by Amy on January 8, 2007
94. ## Algebra

Solution A is 30% acid and solution B is 60% acid. How many gallons of each solution must be used to create a 60 gallon mixute that is 50% acid. I have to set this up as a system of equations, and I thought one system was x + y = 60, but I can't get an

asked by Dana on September 1, 2009
95. ## Algebra

I am solving for sytems of equations using the elimination method. Book says answers are 0,-1. I have tried solving for both x & y using both the 5 and 25 . I am not getting the 0,1 as my answer. 5x-5y=5 25x-25y=22

asked by G on April 1, 2008
96. ## Algebra 1B

24. Solve the system of equations algebraically. Show all of your steps. Y = x^2 + 2x and y = 3x + 20. Btw this is a workpad problem. I just need to be put in the right direction, on how to do it.

asked by Ashley on December 2, 2016
97. ## chem

How many grams of iron metal do you expect to be produced when 245 grams of an 80.5 percent by mass iron (II) nitrate solution reacts with excess aluminum metal? Show all of the work needed to solve this problem. 2 Al (s) + 3 Fe(NO3)2 (aq) 3 Fe (s) + 2

asked by bryan on January 17, 2012
98. ## algebra

It is not solvable by that method, shanaid. You have to get all the numbers on the left, set them to equal zero, and factor. which method is used to solve this equation. x^2-9x-4=6 I would factor, move the six over, then factor i would move the -4 over so

asked by bobpursley on May 17, 2007
99. ## I need help with these please ALGEBRA

1. Consider the leading term of the polynomial function. What is the end behavior of the graph? Describe the end behavior and provide the leading term. -3x5 + 9x4 + 5x3 + 3 2. Evaluate : sqrt7x(sqrtx-7sqrt7) show your work. 3. Solve the equation. Check for

asked by Ciaria on March 17, 2015
100. ## algebra 2

x^2 - 3x + 5 = 0. solve using quadratic formula. show solution

asked by em on January 15, 2014