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

92,096 questions, page 59
1. math

I don't know how to change 1/3 and 2 1/3 into a decimal and still show my work

asked by hannah on December 19, 2012
2. MATH

please explain to me how to get the answer to this problem. must show all work. 4+j< -1 -

asked by taylor on January 7, 2008
3. Math

f(x)=x^2-6x+2 Find the h, the x-coordinate of this parabola. Can you please show work??!!

asked by Angelina on December 8, 2008
4. Math

What is 8 3/4 - 5 5/6 =? Shouldn't the denominator be 24 ? What is this answer please show the work.

asked by Kalelha on March 3, 2015
5. Calculus

Use the first principles definition to differentiate y = 5x^2. Please show all your work!

asked by Steph on February 26, 2012
6. Math

how do you show your work for long division this is the question 61.2 % -7.2

asked by Rosy on October 21, 2010
7. Math

graph the line 3x-4y=-8 Could you show how you got the answer so I can work it out also

asked by Kim on February 18, 2013
8. intermediate algebra

Divide and check: show all work (t4 − 2t2 + 4t − 5) ÷ (t2 − 3)

asked by Clare on October 2, 2011
9. pre algebra

show the work for 136.8 divided by 3600

asked by Sara on September 10, 2012
10. Intermediate algebra

Essay.show work Find the following product.(y-10)^2

asked by Lueshelle on April 10, 2012
11. math

Perform the calculation mentally, show your work. 3 + 57 + 44 + 36

asked by A on August 19, 2010
12. College Algebra

Determine the x- and y-intercepts of the given equation. Show your work y = x + 4

asked by Ashley on January 28, 2010
13. Math

find the quotient show your work 9x^2-25y^2/3x+5y

asked by Lynn on September 16, 2012
14. algebra

Essay. Show all work. Find the quotient y^4+3y-1 -------- y^2-3

asked by shay on July 21, 2011
15. geometry

Given U = {15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25}, A = {16, 18, 20, 22}, and B = {17, 19, 20, 23, 24}. Show your work, finding A’, then B’ then find their intersection.

asked by nitta on June 15, 2011
16. algebra

find the functions f and g so that f of g =H. H(x)=(6x+9)^4 please show work so i understand this better. thank you

asked by alli on September 2, 2012
17. math

d^2+8 - 8-d ____________ d^3-d d^3-d i have the answer 1 over d-1 but i don't no how to show the work

asked by Amy on September 18, 2007
18. Chemistry

A liquid has a density of 0.98 g/mL, what is the mass of 8.0 mL? And show work.

asked by Trip on September 4, 2012
19. Math- Urgent

Solving Equations 3=r/16+4 What does r equal? Please show all work.

asked by j on August 12, 2013
20. algebra

let f be the function given by f(x)=x^2-4x Find and simplifiy f(x+h)-f(x-h)/h Please show all work Thank you

find the f and g, so that fOg= H H(x)=sqrt x^2+17 please show work

asked by Heather on November 27, 2012
22. Math

asked by Sam on May 2, 2012
23. math

what is 789 divided by 19. Show work and not decimal

asked by Grahul on October 25, 2017
24. Math

5. Find 4 ratios equivalent to 30% Show work please thank you

asked by Valeria on June 8, 2016
25. calculus help me asap

if y^6=tanh^-1(tan^-4(4x^2+y^2)^2)^9 find dy/dx show work....

asked by marvin on September 19, 2016

How do I show the work to find the fraction with the greatest value? 7/10, 1/5, 9/10 5/6, 7/12, 7/10

asked by fraction with the greatest value on February 8, 2015
27. Intermediate Algebra

What is the square root of (-24).Simplify. Show work.

asked by sherry on March 29, 2012
28. Pre-Calc

Find (f/g)(x) for f(x)=1/x and g(x)=x^3. Show all work and state the domain of (f/g)(x).

asked by Pat on October 5, 2014
29. Algebra

Point nine multiplied by one over seven what's the answer and show your work ?

asked by Anonymous on February 5, 2012
30. algebra 2

asked by Taylor on March 19, 2010
31. algebra

Essay, show all work. find the following product. (y-8)^2

asked by shay on July 19, 2011
32. Algebra 1

The perimeter of a triangle is 36. Find the value of x. Show your work. 2x+1 3x-4

asked by Katie on September 29, 2016
33. algebra

find a if the line through (9,6a)and (15,a) has the slope -5/3..show work

asked by Marcia on August 2, 2012
34. Algebra 2 help please would appreciate

8x/6y divide 2x/3y simply fraction show work thank you

asked by lisa on November 9, 2013
35. Math Gr 12

State the x and y intercepts for each function below. Show all of your work. 1 y= ---- + 3 x-2

asked by Victoria on October 6, 2014
36. chemistry

convert 1.5ft^3 to liters show work

asked by Anonymous on September 14, 2011
37. chem

How many moles of calcium are in 13.6 g Cacl2? show work if possible

asked by lisa on March 28, 2012
38. math

if something is 80\$ but it is on sale for \$68 dollars what was the discount. show work.

39. algebra

Given f(x)=x^2+4 and g(x)=3x+1 simplify g^-1(x)(inverse) please show work and explain

asked by mia on May 22, 2013
40. maths simultaneous equation

(x+y)(y+z)=5(x+y)(y+z) (x+z)(y+z)=7(y+z)(x+z) (x+y)(x+z)=6(z+x)(x+y) find xyz show work plz

asked by philip!!! on April 13, 2016
41. math

if X is 10% of two other numbers,Y and Z,and Z is 3 times the value of Y.What percentage is X of Y alone ? please show me how you work it out,thanks

asked by sarah on March 1, 2013
42. math

If 12V=3W, and v(not equal)=0, then which of the following is equivalent to 2W-8V? A.0 B.4W C.-6W D.2V E.-2V please show work.

asked by Johnny on July 28, 2014
43. Algebra 2

simplify: -11a - 13b + 7a - 3b .. SHOW WORK !!

asked by Shaka on August 30, 2012
44. Algebra

Evaluate¡Ì7x(¡Ìx - 7¡Ì7)Show you work. My answer x¡Ì7 ¨C 49 ¡Ìx

asked by Johnthyn on March 21, 2015
45. Calculus

Does the line [x,y,z] = [-2,6,5] + t[3,2,-1] lie in the plane 3x - 4y + z + 25 = 0 ? Please show work.

asked by J on May 5, 2012
46. math

156 / 55 - how do i show my work for long division?

asked by melissa on August 30, 2012
47. Math

How do you factor "0 = x^4 - 6x^2 + 5"? Please show all steps. Here's my work, but I just went around in circles..... 0 = x^4 - 6x^2 + 5 -5 = x^4 - 6x^2 -5 = x^2 (x^2 - 6) -5 / x^2 = x^2 - 6 (-5 / x^2) + 6 = x^2 (-5 + 6x^2) / (x^2) = x^2 -5 + 6x^2 = x^2 *

asked by Anonymous on May 22, 2008
48. Algerbra

Divide (x^6-13x^3+42)/(x^3-7) Please show me how to work the problem

asked by Vanessa on October 30, 2013
49. Math

find the gcf and lcm of 10, 60, and 32 and show work

asked by Lynn on March 3, 2011
50. per- calculus

Parrallel to the line 4x+3y=3; containing the points (6,0) a)3x-4y=-24 b)4x+3y=24 c)4x+3y=18 d)3x-4y=18 show all work

asked by Neshia on October 4, 2007
51. math

Essay: Show all work. Find the quotient: y^4 + 3y -5 / y^2 + 7

asked by Anonymous on August 31, 2011
52. Math

asked by Jeanny on January 28, 2016
53. pplz help thank you

-3/5m= -45 the m is next to the fraction sign if unable to see could you please show your work thanks

asked by Kiwi on January 6, 2009
54. Calculus

√(x+2) -7 =√(x+9) If you could show your work on how to get the answer that would be awesome. I really need to learn how to do this

asked by Dan on January 23, 2011
55. Simultaneous equation i nee help find x,y

X^-y=158 y^2-x=108 find x and y?? Show work

asked by Collins on October 22, 2015
56. Algebra

How do I perform the indicated operation and, if possible, simplify. And show all of my work? 7/12 + (-3/5)

asked by Georgiana on November 13, 2015
57. math

What is the percent of each number? 1. 3% of 45 2. 44% of 125 3. 95% of 64 4. 2% of 15.4 Show your work

58. Statistics

10, 12, 16, 17, 20 I'm having a problem figuring out how the answer is 64... how do I get that because I have to show my work Thanks for your help

asked by Steph on June 6, 2009
59. MATH-Algebra

please show/explain what I have to do to work the below problem: p/3 x 24 = 16 p=___________ thank you

asked by Aleksander from Guam on February 1, 2011
60. math

what is the slope and y intercept for the equation y=2/3 x +1 please show the work Thanks

asked by steve dowling on April 10, 2008
61. intermediate algebra

Essay. Show all work. find the quotient: y^4+3y-1 -------- y^2-3

asked by Mike on July 19, 2011
62. algebra

Find the sum: -15+4+(-10) 22+(-4)-15 Can you show me work too I think that'll help me understand better.

63. Algebra-help

7. | 3x - 2 | = 8 and | x + 1 | = 1 What value of x satisfies both equations above? please show your work. I do notunderstand this. Thank You

asked by Deborah on February 1, 2013
64. algebra

Essay. Show all work. Find the following product.(x^2-2)(x^3-4x+9)

asked by shay on July 19, 2011
65. math

Find functions f & g so that fog = H H(x)=(3x+2)^6 Please show work

asked by Heather-need fast on January 9, 2013
66. Pre-Calc

Find (f/g)(x) for f(x) = 1/x and g(x) = x^3. Show work and state the domain of (f/g)(x)

asked by Lily on October 5, 2017
67. math

find the measure of x in the triangle. show all your work. it is a 65 by 65

asked by big red on March 6, 2018
68. Intermediate Algebra

Show all work. Find the quotient:49a^2-b^2/7a-b

asked by Ciara on March 29, 2012
69. Algebra

Given the piecewise function f(x)=5x+1 for 3¡Ü x

asked by Help with Algebra on October 29, 2010
70. Algebra 1

-1/2

asked by kimmi on October 15, 2009
71. math help

3x^2-6x-9 State the coordinates of the x-intercepts show work.

asked by Anonymous on September 29, 2015
72. math

Round 9.86-5.47 to the nearest whole number. Need to show my work.

asked by Bob on October 19, 2009
73. ALGEBRA

9/16-(-3/16) SUBTRACT SHOW ALL OF YOUR WORK SIMPLIFY tHIS IS WHAT I GOT. 9/16+3/16=12/16=3/4 IS WHT I got.

asked by Angela on November 10, 2011
74. College Algebra

In an assembly line of a factory, which produces networking switching hubs, two robots are utilized. The first one (A) is able to produce 40 microchips per hour, whereas the second one (B) produces 30 microchips per hour. For a total production of 400

asked by Marina on November 16, 2012
75. math - y-intercept

hi, how would we find the y intercept , given slope of 11/2.54 and points (5,1.49). can you show me the steps so i can solve it. tnx y=ax + b where a is slope, b is y intercept. Put the points in the equation... 1.49=11/2.54 (5) + b solve for b. x + y = 1

asked by gorden on March 4, 2007
76. science

A 0.21 g of Sulfuris acid is dissolved completely in sufficient water to make 0.25 litre of final solution. Calculate the hydrogen ion concentration (in mol 1 -1) in this solution. Give your answer in scientific notation to an appropriate number of

asked by Gemma on March 6, 2007
77. math 1

6x + 8y=4 8x -3y=19 I did elimination. 82y=-82

asked by Rocky on February 28, 2017
78. Algebra

y =1/4x - 4 : y = -7/4x + 4 I need help with this one...has to be solved by elimination. Thanks

asked by Teighan on December 12, 2018
79. math

solving with elimination 7x-4y=13 2x-5y =-4

asked by anatoliy on April 12, 2013
80. math pre calc

gaussian elimination x+Y+Z=-2 X-y+5z+22 5x+y+z=-22

asked by JT on April 25, 2013
81. Geometry

Elimination -12x -8y=-20 -3x +9y=-27

asked by Anonymous on April 15, 2014
82. Pre-calc

use either substitution or elimination 4/x-3/y=0 4y=3x

asked by Jennifer on March 14, 2012
83. math

solving with elimination 7x-4y=13 2x-5y =-4

asked by anatoliy on April 12, 2013
84. Math Algebra

asked by Desmond Reid on January 25, 2011
85. math

solving with elimination 7x-4y=13 2x-5y =-4

asked by anatoliy on April 12, 2013
86. algebr7a

can anyone tell me how to use Gaussian Elimination? 3x+2y+4z=19 x+5y+2z=1

87. physics

two point charges are 10.0 cm apart and have chargeso of 2.0 uC (micro)and -2 uC, respectively. What is the magnitude of the electric field at the midpoint between the two charges? i think the answr is zero.. but i don't understand how to get to it...can

asked by physics on March 15, 2009
88. Algebra

Use the quadratic formula to solve the equation for x in terms of y and y in terms of x. (Enter your answers as a comma-separated list. If there is no solution, enter NO SOLUTION.) 2x^2 + 7xy + 1 − y^2 = 0 y in terms of x y =

asked by Liam on September 15, 2014
89. physics

Consider the system shown, with m1 = 2.0 kg, m2 = 3.0 kg, and á = 30o. The force F acts horizontally to the left and the kinetic coefficient of friction between m1 and the incline is ìk = 0.40. The mass m2 is moving up at a constant speed. (a) What is

asked by Stehlin on February 19, 2013
90. Computer science

THIS IS C PROGRAMMING I NEED TO CREATE A METHOD! Create a method areaOfaTrapeziod when given a, b, and h (all doubles), will return the area (double) of a trapezoid. Use the equation pictured below. THANKS IN ADVANCE :)

asked by Nan on November 2, 2011
91. Physics - The scientific method

Is the scientific method a clearly-defined set of steps and procedures? I don't think so... There is not just one scientific method, and each one probably involves solving things in a different way.

asked by Anonymous on September 9, 2011
92. math

For tax and accounting purposes businesses often have to depreciate equipment values over time. One method of depreciation is the straight-line method. Three years ago Hilde Construction purchased a bulldozer for \$51,500. Using the straight-line method,

asked by Cameron on September 15, 2016
93. PE

Extra Credit Opportunity Health and PE Project: Body Systems 10 Extra Credit Points! (5 points for the project, 5 points for presenting during LL) What: Choose a Body System from Unit 6 and Create a PowerPoint Slide or a Poster! Why: Teach us about

asked by Jessica Buhler on March 8, 2017
94. algebra

0. Tell your classmates about your pet to set up the scenario for fencing a rectangle in your yard. 1. You MUST start by choosing an amount of area that you want to fence in for your pet and this MUST be stated first. What amount of area are you enclosing

asked by jim on February 14, 2012
95. chemistry

this is a really long question. i don't understand how to answer it. help please. A 10.0% aquueous solution of sulfuric acid has a density of 1.0661 g/mL at 20 degrees celsius. A. how many grams of H2SO4 are found in 50.0 g of this solution? B. how many

asked by Nicole on April 7, 2013
96. chemistry

When 27.20mL of .5 M H2SO4 is added to 27.20 of 1M KOH in a coffee cup calorimeter at 23.5 degrees C, the temp rises to 30.17 degrees C. Calculate delta H of this reaction. (Assume that the total volume is the sum of the individual volumes and that density

asked by patrick on October 16, 2015
97. chemistry

When 27.20mL of .5 M H2SO4 is added to 27.20 of 1M KOH in a coffee cup calorimeter at 23.5 degrees C, the temp rises to 30.17 degrees C. Calculate delta H of this reaction. (Assume that the total volume is the sum of the individual volumes and that density

asked by patrick on October 15, 2015
98. chemistry

When 27.20mL of .5 M H2SO4 is added to 27.20 of 1M KOH in a coffee cup calorimeter at 23.5 degrees C, the temp rises to 30.17 degrees C. Calculate delta H of this reaction. (Assume that the total volume is the sum of the individual volumes and that density

asked by patrick on October 16, 2015
99. Chemistry

Ok, in this question, the drops is throwing me off totally, can someone help! A nationally known company markets a product called "cleaning vinegar" that is not designed for human consumption. What is the mass percent of acetic acid in this product if 25

asked by Toni on March 4, 2007
100. Linear Programming Homework Problem

formulate this Lp model . write in standard form An investment firm hired you to manage one of their new mutual funds. The fund invests in two main companies/stocks, Pittsburg Steel (X1) and IMB(X2). Pittsburg Steel is currently trading at \$40.00 per share

asked by Anonymous on October 15, 2014