# 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 287
1. ## help

help show graph for 4(x+7) < 2x+31

asked by Anonymous on February 15, 2011
2. ## help

help show graph for 4(x+7) < 2x+31

asked by Anonymous on February 15, 2011
3. ## Mathematics

Show that y=|x-3|is not differentiable at x=3

asked by Syam on December 29, 2014
4. ## Algebra

Show that (1-2*x*y+1)/(x^2*y-x) simplifies to -2/x

asked by Al on February 14, 2011
5. ## algebra 2

2x^2-5x-3 show all the step please thanks

asked by lisa on December 19, 2012
6. ## College Math

Could you show me how to do 5z/7 - 5z/8 = 1 The answer is 56/7 But how did they get it ?

asked by HM on October 2, 2011
7. ## language arts

hw do i show you my answers

asked by hailey on September 12, 2012

asked by casey on March 16, 2011
9. ## math (fractions)

could you show me how to multiply 1/3 and 3?

asked by popcorn010 on January 13, 2011
10. ## math

Show that Sn is non-abelian for n>=3

asked by Jackie on October 11, 2011
11. ## math

asked by paul on September 22, 2011
12. ## math

Show that one and only one of x,x plus 2 and x plus 4 is divisible by 3?

asked by Dwithun Basumatary on June 26, 2013
13. ## Philosophy

Show that (P → Q) ↔ (¬P ∨ Q) in fitch

asked by Ashley on March 29, 2013
14. ## Maths

1/3[22(x-8)+1=19.Show working

asked by Anonymous 1 on January 27, 2011
15. ## math

show me from least to greatest 6/11, 2/3, 4/7, 9/10, 15/22, 1/4, 2/5, 7/9, 1/6, 5/8

asked by christine on March 20, 2014
16. ## math

65% of 24.6 = 15.99 show me the calculation

asked by Anonymous on January 28, 2012
17. ## math

Can i show you a thing i need help with...

asked by Amber on December 5, 2011
18. ## Pre-cal

10.2 can someone show me this graph(x+2)^2/4+(y+2)^2/15=1

asked by sandra on April 18, 2012
19. ## Math

Show that tan(45/2)=2^1/2 - 1

asked by Tommyt on February 9, 2013
20. ## math

Show 2 more in a set with 5. Show 3 less in a set with 12.

asked by Geanna on October 23, 2012
21. ## science

how do you show staregy

asked by sam on December 7, 2010
22. ## math

x/4+2=1 -3+x/1=-3 please show steps thanks

asked by paul on September 22, 2011
23. ## math pre-algebra

1.x/4+2=1 2.-3+x/1=-3 please show steps thanks

asked by paul on September 22, 2011
24. ## pre-algebra

x/4+2=1 show step

asked by rose on September 22, 2011
25. ## maths

how to show the working out for 1.3*1.8

asked by kirsty on October 17, 2014
26. ## mat/simultaneous equation

2x-5y=13, 5x-3y= -15 can anyone show me how to find out the value of x , y please,thanks

asked by wan on June 29, 2014
27. ## math/algebra

What is the product of 11/15 and 12/7? Can you show me how this is done please?

asked by Anonymous on May 30, 2012
28. ## Algebra 1

6y^-3 Can you show steps on how to do this

asked by Karen on December 5, 2013
29. ## algebra

What is the product of 11/15 and 12/7? Show how this is done please.

asked by Anonymous on May 29, 2012
30. ## chemistry

show that 1mg/L = 1g/m3

asked by Maria on January 15, 2011
31. ## algebra 1

can someone show me how to graph this x+4y=8

asked by robbie on January 15, 2011
32. ## math

m=2/3 trying to help my child can someone please show me how to do this

asked by ffe on August 27, 2014
33. ## maths

Let a, b, c and d be vectors. (i) Show that (a - b) * (a + b) = a^2 - b^2

asked by Jess on February 6, 2013
34. ## vector algebra

For any two vectors u and v show that (u.v)^2-[(u.v)×v].u = u^2v^2

asked by gourav on March 27, 2015
35. ## math

Show that (-2;-6) (2;-4) and (4;-3) are collinear

asked by lerato on August 30, 2014
36. ## math

show me how to subtract 11/16-3/4=

asked by pat on November 26, 2010
37. ## math

-2x^2

asked by Ellie on October 6, 2009
38. ## mathematics need help

Given that y = e^f(x), show that y' = f'(x)e^f(x). Hence, find y' when f(x) = x. Given that y = e^f(x), show that y' = f'(x)e^f(x). Hence, find y' when f(x) = x.

asked by philip on September 27, 2016
39. ## math

show 3/8,3/4,1/4,2/4,and 5/8 from least to greatest

asked by pj on May 13, 2016
40. ## math

in = x out = x negative 2 so if 4 is in then what is the out please show how you got it

asked by sam on May 6, 2010
41. ## Maths

If y=tan^2x, show that d^2y/d^2x=2(1+y(1+3y)

asked by Ande2 on May 9, 2019

someone please show how to do Simplify, if possible: 6x^2y^3+9x^2y^3/3x^2y^2

asked by sharon on November 27, 2007

Show that (f X g)(x) = (g X f)(x) = x for f(x)= 3x-5 and g(x)= x+5 / 3 I have know idea how to do this.

asked by Hannah on November 8, 2010
44. ## math

by simplifying,show that (2x-3)(2x+3)-(x-4)^2= 3x^2+8x-25

asked by xavier on April 9, 2008
45. ## mathematical phyaics

For three vectors u, v and w show that: (u×v).[(v×w)×(w×u)]= [u.(v×w)]^2 .

asked by gourav bhardwaj on September 13, 2016
46. ## math

Why do graphs show "other"?

asked by stacey on August 25, 2009
47. ## math

Show that x^2+y^2-6x+4y+2=0 and x^2+y^2+8x+2y-22=0 are orthogonal.

asked by dan on July 9, 2010
48. ## Math

What's -6 + 2/12? Could you please show your steps? Thank you! :)

asked by Hanna on November 3, 2015
49. ## Algebra

s+(s-\$0.45)+(s-\$0.45)=\$9.65 Please show me how to do this problem.

asked by Rusty on October 17, 2007

3x^2 - 1/3 = ? please show steps

asked by Spanky on December 2, 2008
51. ## Algebra

Please show steps need help! 7y + 1 < y - 5

asked by Anonymous on October 12, 2010
52. ## inverse operations - maths

what is a 6a + 12 = 55 - 2a please show workings

asked by patricia on April 28, 2009
53. ## maths

6a + 12 = 55 - 2a please show workings

asked by patricia on April 28, 2009
54. ## 11+ maths inverse operation

a = ? 4a + 12 = 7a - 9 please show workings

asked by patricia on April 24, 2009
55. ## MATH

1. Show, from the definition, that if A:B::C:D and C:D::E:F then A : B :: E : F.

asked by Sara on March 13, 2017
56. ## Maths

If y=tan^2x, show that d^2y/dx^2=2(1+y)(1+3y)

asked by Ande2 on May 13, 2019
57. ## Math

Let A and B be sets. Show that A\B(A\B) ⊆ B.

asked by Winston on January 26, 2017
58. ## algebra

Can someone show me how this would be simplifyed? 5^1/2 * 5^1/4

asked by C on July 10, 2008
59. ## math

Help subtract 7 4/5 from 18 6/15 Can someone show me how to do this please

asked by Debbie on November 5, 2008
60. ## math

How can you draw to show 42

asked by shenique on March 18, 2016
61. ## science

asked by bob on November 20, 2018
62. ## math

show how to use four two's to get the quanity 14

asked by mooch on September 2, 2007

how do i show my answer for 2/3 of 90 = 60

asked by kyndal on February 11, 2010
64. ## maths

show that (4-

asked by yvonne on May 11, 2017
65. ## Math

Let A and B be sets. Show that A\B(A\B) ⊆ B.

asked by Winston on January 27, 2017
66. ## Math

Let A and B be sets. Show that A\B(A\B) ⊆ B.

asked by Winston on January 26, 2017
67. ## math

32.5 - 45.8 please show steps!

asked by Andrew on September 17, 2010
68. ## algebra

can you show me how to log 36=x

asked by jay on June 6, 2010
69. ## math

2x-3y=17 and 5y=-11 and Y show me how to figure out what is the value of x and y?

asked by leslie on August 15, 2018
70. ## laplace transformation:help damon or steve or rein

y"'-3y"-3y'=x^2e^x where y(0)=1, y'(0)=2, y"(0)=0 show step

asked by mayeriwe on April 13, 2017
71. ## Math

x^8y^-5 over z^-4 Can you please show me how you got the answer. Thanks

asked by Heather on May 9, 2010
72. ## Math (Vectors)

Show that x dot y = 1/2 ( |x + y^2| - |x|^2 - |y|^2 )

asked by Michelle on February 28, 2008
73. ## Math

What is 1/2% of 18 Can you show me the steps please?

asked by kelley on February 4, 2018
74. ## Algebra

How come there are no x intercepts for x^2-x+(5/4)? Can you show me why, please?

asked by Erin on November 8, 2009
75. ## Precalc

Can someone show me how to simply this: (5x^3 y^-1 z^-5)^-3 (x^2 y^0 z^-6)^2

asked by Johni on August 26, 2015
76. ## math

2x-3y=17 and 5y=-11 and Y show me how to figure out what is the value of x and y?

asked by leslie on August 15, 2018
77. ## mathematics-Algebra

asked by p1 on March 16, 2016
78. ## Maths

If dy/dx = 8x - 3x^2 , then how you show that dy/dx is postive when 0

asked by Remy on October 18, 2010
79. ## Maths

Show that Cos 22.5=√2+√2/2

asked by Ande2 on March 28, 2019
80. ## Algebra

2{3x-(x-3)}=3(x-3) Can you please show me the steps on how to do this.

asked by Melonie on August 23, 2010
81. ## calculus - vectors

Show that x dot y = 1/2 ( |x + y^2| - |x|^2 - |y|^2 )

asked by Michelle on February 28, 2008
82. ## Algebra 1 HELP!

asked by Anna on September 17, 2007
83. ## math

can someone show me how to graph y+1=-3/2(x-0)

asked by meme on September 11, 2010
84. ## Reposting calculus help plz

Dy/dx=(X+x^3)/y help show working

asked by Collins on January 1, 2016
85. ## maths

asked by dushimyimana regis on January 28, 2019
86. ## math

how to show that 7/8 is bigger than 5/6

asked by allison on November 13, 2008
87. ## math

2x-3y=17 and 5y=-11 and Y show me how to figure out what is the value of x and y?

asked by leslie on August 15, 2018
88. ## Math

Given is the series 1+2+3+4+5+...+n Show that n(n+1)\2

asked by Linda on January 22, 2019
89. ## science

2) A roller coaster is at the top of a 98.2 m hill and has a mass of 1831.0 kg. It is traveling at a velocity of 23.7 m/s. What is the coaster car's TOTAL energy? I used the eg=m*g*h equation and got a value of 1762081.16 .. i then used the ek=1/2mv^2 and

asked by Mary on December 7, 2009
90. ## Math

Calculate the monthly finance charge for the following credit card transaction. Assume that it takes 10 days for a payment to be received and recorded and that the month is 30 days long. (Round your answer to the nearest cent.) \$500 balance, 20% rate, \$50

asked by Anonymous on March 13, 2012
91. ## ALGEBRA

Calculate the monthly finance charge for the following credit card transaction. Assume that it takes 10 days for a payment to be received and recorded and that the month is 30 days long. (Round your answer to the nearest cent.) \$500 balance, 20% rate, \$50

asked by MONICA on November 26, 2011

Deduct Social Security, Medicare and FIT (by percentage method) from earnings. SS rate is 6.2% on 97,500 and 1.45% for Medicare. Richard is \$1000 below the maximum level for SS earnings. He is married, paid weekly and claims 2 exemptions. What is Richard's

asked by Kimberly on February 22, 2010
93. ## dog behavior

please check my answer thanks Latent learning becomes evident when A. a puppy grows up B. the animal is motivated to perform C a dog has failed with the trial-and-error method D. a dog experiences social facilitation I picked A because latent learning

asked by Anonymous on April 17, 2008
94. ## Chem

Please tell me if these are right! What are the [H3O+] and [OH-] for a solution with the following pH values? a. 10.0 I got 1.0*10^-10 for [H3O+] and 1.0*10^-4 for [OH-] b. 5.0 I got 1.0*10^-5 for [H3O+] and 1.0*10^-9 for [OH-] c. 7.00 I got 1.0*10^-7 for

asked by Jessica on December 8, 2010
95. ## Chemistry

Calculate [H3O+] in the following aqueous solution at 25 ∘C: [OH−]= 1.9×10−9M Calculate [H3O+] in the following aqueous solution at 25 ∘C: [OH−]= 2.1×10−2M Calculate [H3O+] in the following aqueous solution at 25 ∘C: [OH−]= 6.1×10−12M

asked by Brandon on April 29, 2014
96. ## Chemistry

Can someone please tell me if I am doing this problem correctly. Thank you! Given: 450 mL (0.450L); 0.250 M KNO Need: Mass of KNO Q) What mass of KNO3 (MW=101) is needed to prepare 450mL of 0.250 M KNO3 in water? A) 0.450 L Solution x 0.250 M KNO/1 L

asked by Kishwa on April 1, 2013
97. ## Chemistry

You are required to prepare 100g of potassium nitrate crystals from its saturated solution at 75 degree Celsius. If the solubility of potassium nitrate at 75 degree Celsius is 155g and 20 degree Celsius is 31g, find the weight of potassium nitrate solution

asked by Sagnik on September 18, 2016
98. ## Physics

The (nonconservative) force propelling a 1.50E3 kg car up a mountain road does 4.70E6 j of work on the car. The car starts from rest at sea level and has a speed of 27.0 m/s at an altitude of 2.00E2 m above sea level. Obtain the work done on the car by the

asked by Matoro on December 9, 2012
99. ## World History

What was the impact of the Napoleonic Code? 1.) it became the set of civil laws adopted throughout Europe and other parts of the world. 2.) it established a way to use sociology to categorize European citizens for taxation 3.) It was the central method of

asked by Kayla on February 23, 2018
100. ## 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 1, 2007