# If y varies diretly with x, write an equation for the direct variation. then find each value. Find y when x = 10 if y = 8 when x = 20 If think I can find the value by y/10

129,449 results
1. ## Algebra worksheet

Hello. My algebra teacher gave me this worksheet last week and everyone had to bring it yesterday and I haven't done it yet. Can someone please help me. He said Friday is the last day or he's going to take away some points. I've been having trouble with

2. ## math

If y varies diretly with x, write an equation for the direct variation. then find each value. Find y when x = 10 if y = 8 when x = 20 If think I can find the value by y/10 = 8/20 with the answer for the value is 4. My problem is how to find the equation.

asked by Jane on November 6, 2012
3. ## Algebra

This is about direct variation. The area a painter can paint varies directly with the amount of time he works. One morninig, he painted 204 ft² between 8 a.m. and 12:15 PM. Write a direct variation equation to describe the area y covered in x hours. The

asked by David on November 17, 2010
4. ## math

This is about direct variation. The area a painter can paint varies directly with the amount of time he works. One morninig, he painted 204 ft² between 8 a.m. and 12:15 PM. Write a direct variation equation to describe the area y covered in x hours. The

asked by Jeff on November 18, 2010
5. ## algebra

Hi I'm having trouble with this question I don't understand it at all. This is the question: Suppose y varies directly with x, and y = 15 and x = 5. Write a direct variation equation that relates x and y. What is the value of y when x = 9? If somebody

asked by Abi Cartright on November 30, 2017
6. ## Variation

I have few questions that I need checked please and could you help me with the last question? Write an equation that expreses the relationship. Use k as the constant of varaiation. 1. s varies directly as h -I got: s=kh 2.a varies directly as the square of

asked by Soly on October 8, 2007
7. ## algebra

I have no clue what to do here can you tell me how to figure this? If y varies directly with x, and y = 500 when x = 200, find the constant of variation k. Whenever you have a statement such as "....y varies directly with x..." you can write it as an

asked by stressed on May 14, 2007
8. ## Algebra 2 Honors

Hey, we recently started a topic in class that I don't understand well, I just want to post 6 of the problems and ask if they're right or not (some of them I have no idea how to do). 1. If a varies directly as b and b = 18 when a = 27, find a when b = 10.

asked by Ryan on May 13, 2015

i have a homework assignment i do not know how to do. i was out sick so i have not learned this. hear is the question......y varies directly as x. find the constant of variation and write an equation for the direct variation. question 1: y=15 when x=5

asked by gavyn on January 15, 2009
10. ## Algebra

Suppose that Y varies directly with X, and Y=4 when X=16 (a) Write a direct variation equation that relates X and Y (b) Find Y when X=3

asked by Anonymous on March 13, 2016
11. ## math

write the direct variation equation for the following:y varies directly with x and y=60 when x=10

asked by lina on June 11, 2013
12. ## math

Is the relationship between the variables in the table direct variation, inverse variation, both, or neither? If it is a direct or inverse variation, write a function to follow it. X:2 5 20 40 Y:40 20 5 2 ANSWERS AVAILABLE TO CHOSE: A) NEITHER B) INVERSE

asked by josh on May 17, 2016
13. ## Algebra

1. Total distance traveled varies directly with the amount of time spent traveling. If traveling 4.5 hours results in 180 miles traveled, write the direct linear variation equation. Then determine how long it would take you to travel 320 miles, assuming

asked by Stacie on November 5, 2016
14. ## Math

1. Suppose y varies directly with x. Write a direct variation equation that relates x and y. y= 7 1/2 when x=3 a. y= 3/2 x b. y= 2/3 x c. y= 5/2 x d. y= 2/5 x 2. Suppose y varies directly with x. Write a direct variation equation that relates x and y.

asked by Kaai97 on December 4, 2015
15. ## Direct Variations

Suppose y varies directly with x. Write a direct variation equation that relates x and y. y=10.4 when x=4 y=3.4x* y=3.8x y=3.2x y=2.6x

asked by Person on November 15, 2017
16. ## Algebra

Suppose y varies directly with x. Write a direct variation equation that relates x and y. y= 7 1/2 when x=3 y=3/2x y=2/3x* y=5/2x y=2/5x

asked by Person on November 15, 2017
17. ## Math

1. Suppose y varies directly with x and, y=15 and x=5. Write a direct variation equation that relates x and y. What is the value of y when x=9? I need a little help on how to figure out how to write this out. Any help will be appreciated. Thank you

asked by Anonymous on November 30, 2016
18. ## Algebra 2

Find an equation of variation in which y varies inversely as x and the following is true: y=31, when x=4 Originally, I mixed up the equations of inverse and direct variation, and got 31=m(4) ----- b Obviously, I got it wrong, but I've gone ahead and redid

asked by Jennifer on February 15, 2017
19. ## Algebra

For each problem suppose y varies directly with x. Write a direct variation equation that relates x and y. y=6 when x=8

asked by Zoe on February 5, 2017
20. ## Check my answers. Algebra

Can you please check my answers? Thanxs! Write an equation that expresses the relationship. Use k as the constant of variation. 20. f varies jointly as b and the square of c. -I got: f=kbc^2 22. r varies jointly as the square of s and the square of t. -I

asked by Soly on October 11, 2007
21. ## variation

Can you please check my answers? Thanxs! Write an equation that expresses the relationship. Use k as the constant of variation. 20. f varies jointly as b and the square of c. -I got: f=kbc^2 22. r varies jointly as the square of s and the square of t. -I

asked by Soly on October 9, 2007
22. ## Variation-Check Problems

Can you please check my answers? Thanxs! Write an equation that expresses the relationship. Use k as the constant of variation. 20. f varies jointly as b and the square of c. -I got: f=kbc^2 22. r varies jointly as the square of s and the square of t. -I

asked by Soly on October 9, 2007
23. ## variation

Can you please check my answers? Thanxs! Write an equation that expresses the relationship. Use k as the constant of variation. 20. f varies jointly as b and the square of c. -I got: f=kbc^2 22. r varies jointly as the square of s and the square of t. -I

asked by Soly on October 9, 2007

Given that y varies directly with x, write a direct variation equation that relates x and y. x=1/3

asked by Izzy on October 25, 2011
25. ## Math-URGENT,

Given that y varies directly with x, write a direct variation equation that relates x and y. x=1/3

asked by Izzy on October 25, 2011
26. ## Algebra 2

Is the relationship between the variables in the table a direct variation, an inverse variation, both, or neither? if it is a direct or inverse variation, write a function to model it. x 2 5 15 20 y 20 15 2 2 a. inverse variation;y=10/x b. neither c.

asked by kathy on May 19, 2014
27. ## Math

I have 2 questions that I need help with if someone could please help me step by step to figure out how to do this equation it would be very helpful. Thank you 1. Suppose y varies directly with x and, y=15 and x=5. Write a direct variation equation that

asked by Anonymous on November 30, 2016
28. ## Algebra

Write an equation of the direct variation that includes the point (–3, –9). Direct variation can be expressed with this equation: y = kx Using your point, let's find k. -9 = -3k 3 = k Equation: y = 3x Thanks it makes sense

asked by Todd on March 21, 2007
29. ## algebra

Find the variation constaant and an equation of variation where Y varies directly as X and Y = 72 hen X = 8 The variation constant is K = ? The equation of variation is Y = ? I think that K = 9 but not sure I don't have a clue about the rest.

asked by Lori on August 17, 2010
30. ## Math

I am doing Direct Variation in math. I don't understand how to do it. It would be very helpful if you helped me with these problems: Is each equation a direct Variation? If it is, find the constant of variation: y=3/5x -3x+2y=0 -5x+2y=9 8x+4y=12

asked by Kirsin on April 8, 2008
31. ## Math

if y varies directly as x find the direct variation equation for the situation: y=20 and x=16

asked by George on October 20, 2007
32. ## Algebra

Does the data in the table represent a direction variation or an inverse variation, write an equation x 1 2 5 10 y 40 20 8 4 My answer is a direct variation, y=40x, is this correct? here are the other answers direct variation 7=1/40x inverse variat xy=40

asked by abbey on May 20, 2016
33. ## Algebra 2

Let (x1,y1) be a solution, other than (0,0), of a direct variation equation. Write an second direct variation equation whosegraph is perpindicular to the graph of the first equation.

asked by Bob on October 12, 2010
34. ## algebra

Could someone show me how to solve this joint variation problems? Y varies jointly as x and y and inversely as w. Write the appropriate combined variation equation and find z for the given values of x, y and w. z=15 when x equals three, y equals four, and

asked by Juliette on December 8, 2008
35. ## Math (HELP ASAP!)

1. Find the slope of the line that passes through (-2,1), (1,10). a. 3 b. -3 c. 1/3 d. -1/3 2. Which equation represents a direct variation? What is the constant variation? a.3y = 2x + 1; 1 b.y = -5x - 11; 5 c.4y = -12x; -3 d.y + 7 = 2x - 1; 7 3. Suppose y

asked by Catalena on April 25, 2017
36. ## Math

1. Find the slope of the line that passes through the points (-1, 2), (0, 5). 2. Suppose y varies directly with x, and y = 15 and x = 5. Write a direct variation equation that relates x and y. What is the value of y when x = 9? 3. Write an equation in

asked by PicturesDon'tChangeThePeopleInsideOfThemDo on December 13, 2017
37. ## Algebra

Each ordered pair is a solution of a direct variation. Write the equation of direct variation. (2,10) (8,2) (7,21) (2,-16) Please Help!

asked by Caitlyn on December 3, 2010
38. ## Math

Do the data in the table represent a direct variation or an inverse variation? Write an equation to model the data in the table. x 1 3 5 10 y 4 12 20 40 a. direct variation; y=4x b. direct variation; xy=1/4 c. inverse variation; xy=4 d. inverse variation;

asked by Billy on May 22, 2018
39. ## Math

I need the answers and the work shown steb by step today pls^^ For each direct variation find the constant of variation.Then find the value of y when x= -5 1.y=2 whne x=7 2.y=-2 when x=2 3.y= 17 when x=-4 y varies directly with x. 1.if y=6 when x=2,find x

asked by alex on October 6, 2009
40. ## Math help

9). Hooke’s Law. The distance d when a spring is stretched by a hanging object varies directly as the weight w of the object. If the distance is 29 cm when the weight is 4 kg what is the distance when the weight is 9 kg? 10). Find the variation constant

asked by jim on May 28, 2010
41. ## Algebra2

Does the relation in the table represent direct variation, inverse variation, or neither? if it is direct or inverse variation, write an equation to represent the situation. Explain your answer x 5, 10, 15, 20 Y 2, 1, 2/3, 1/2

asked by Steve on February 19, 2017
42. ## Algebra

Hi! Can you please re-check my answers. Mt teacher said some of them are not right but when I do it again, I still come up with the same answer. This is about Variations. Thanks! 1. What kind of variation equation is a=kbcd --> my answer is joint variation

asked by McKenna Louise on December 12, 2013
43. ## algebra

find the variation constate and an equation of variation where y varies inversely as x and y=1 whenx=6 what is the variation constant is

asked by karon on December 16, 2011
44. ## math

Suppose y varies directly with x and y = 72 when x = 6. What direct variation equation relates x and y? What is the value of y when x = 10?

asked by kyle on October 21, 2016
45. ## algebra

Help would be greatly appreciated!!! This gets really confusing for me. Write an inverse variation equation. If y varies inversely with x and y=2 when x=4…. a. Find K. b. Write a general equation. c. Use your equation to find y when x=8 Draw a chart to

asked by Anonymous on September 29, 2011
46. ## Algebra

Y varies directly with x for the following function when y=6 when x =2. Find the constant of variation, write the equation, then find y when x is 2. Hint: use y = kx, where k is the constant of variation.

asked by Seth on October 5, 2017
47. ## Math

Does the relation in the table represent direct variation, inverse variation, or neither? If it is direct or inverse variation, write an equation to represent the relation. Explain your answer. x; 5,10,15,20 y; 2,1 ,2/3,1/2 Can someone please help me with

asked by Olivia N J on March 1, 2017
48. ## algebra

Tell whether equation represents direct variation. If so, identify the constant of variation 1. Y=8x Ans: yes, it represents direct variation because its in the form Y=kx. Constant of variation: 8 2. Y=2x+1 3. 3x+y=6 Please help, not too sure if I am

asked by **LB** on January 4, 2013
49. ## algebra 1

if y varies inversely with x' find the constant of variation and write an equation if y=1/2 and x=-10

asked by Jennifer on May 27, 2014
50. ## Algebra

Find the variation constant and an equation of variation where Y varies directly as X and Y=60 when X=10 k=variation constant y=equation of variation Still do not understand..please..

asked by Maria1 on May 5, 2012
51. ## Algebra Variation Constant

What does this mean? Do I graph this or what? Find the variation constant and an equation of variation where y varies directly as x and y=12 when x=2 The variation constant =? The equation of variation is y=?

asked by Micah on February 28, 2008
52. ## algebra 2

Determine whether y varies directly with x. If so, find the constant of variation and write the equation. X | Y ------ 1 | -2 3 | -6 5 | -10 i think it's A ?? A. yes; k=2 and y=2x B. no C. yes; k= -2 and y= -2x D. yes; k= -1/2 and y= -1/2x

asked by anon on October 6, 2017
53. ## algebra

Determine whether y varies directly with x. If so find the constant of variation k and write the equation. x y 7 11 8 13 9 15 10 17 Help please!

54. ## college algebra

Find the variation constant and write a formula that expresses the indicated variation. c varies inversely as d, and c=5 when d = 2.

asked by BJ on April 23, 2010
55. ## math

Write the variation and find the quantity indicated. F varies jointly as q1 and q2 and inversely as the square of d. If F=12 when q1 =3, q2=9 and 9=3 The variation of F=

asked by misty on August 27, 2013
56. ## Math

A farmer’s harvest in bushels varies directly with the number of acres planted. A. Express in sentence form what this means to the farmer. B.Translate the variation statement into the corresponding variation equation. C. If 8 acres can produce 144

asked by Veronica on April 21, 2012
57. ## algebra

Determine whether y varies directly with x, If so, find the constant of variation k and write the equation. x y 4 6.4 7 11.2 10 16 13 20.8 Would like for someone to explain if possible

asked by jay on September 11, 2012
58. ## algebra

Determine whether y varies directly with x. If so find the constant of variation k and write the equation. x y 7 11 8 13 9 15 10 17 Can someone please help me and explain

asked by brandon on September 20, 2012
59. ## Math

This is regarding direct variation. y varies directly as the square of R. If y = 128 when R = 8, find y when R = 5. Another one I cannot figure out: If x varies directly as y, and x = 32 when y = 8, find x when y = 10 Help!

asked by Mike on April 18, 2010
60. ## Math

Suppose that y varies inversely as t he cube of x. If y is 1/2 when x is 2 , find the constant of variation and variation equation

asked by Mary on August 28, 2014
61. ## math

Find the variation constant and an equation of variation if y varies directly as x and the following conditions apply.

asked by jay on February 21, 2016
62. ## math

Find the variation equation for the variation statement. z varies directly as x and inversely as y; z = 3 when x = 24 and y = 40

asked by Anonymous on March 20, 2010
63. ## Algebra

Write a direct variation equation that relates x to y. Then solve. Show both the equation and the solution. If y = 8 when x = 4, find y when x = 5.

asked by joshua on January 6, 2011
64. ## Algebra

Find the variation constant and an equation of variation where y varies directly as x and y=50 when x=10

asked by Tim on August 12, 2010
65. ## algebra

Find the variation constant and a equation of variation where y varies inversely as x and y=1 when x=15

asked by Randy on June 1, 2012
66. ## Algebra

Find the variation constant and an equation of variation where y varies directly as x and y = 20 when x = 10

asked by Mary on April 17, 2008
67. ## algebra

find the variation constant and an equation of variation where y varies directly as x and y = 54 when x =x6

asked by Terry on April 15, 2012
68. ## Algebra

Find the variation constant and an equation of variation where y varies inversely as x and y=2 when x=6

asked by Elsa on September 4, 2016
69. ## MATH Algebra

How do I find the variation constant and an equation of variation where y varies directly as x and y =70 when x=7

asked by Anonymous on September 13, 2009
70. ## Algebra 2

Find the A) Constant of Variation, B) the Equation of the Variation, and the C) the Solution Suppose B varies directly with C and inversely with D and the cube root of A. B = 4 when A = 27, C = 2, and D = 5. Find B when C = 3, A = 64, and D = 6.

asked by Nate on February 15, 2018
71. ## Algebra genius?

Find the variation constant and an equation of variation where Y varies directly as X and Y=60 when X=10 k=variation constant y=equation of variation

asked by Maria1 on May 5, 2012
72. ## algebra

Find the variation constant and an equation of variation where y varies directly as x and y=16 when x=8 The variation constant is k=? The equation of variation is y=?

asked by ASHLY on October 22, 2010
73. ## algebra

1. Find the variation constant and and an equation of variation where y varies directly as x and y y=42 when x=6 variation constant is K= equation of variation is y= 2.Jack usually mows his lawn in 6 hours. Marilyn can mow the same yard in 4 hours. How

asked by Pinky P on January 4, 2012
74. ## Math

1. Consider a heptagon geometric figure. a) Write an equation for its perimeter b) If you graph the equation wherein x=2, 5, 8, and 12, does the graph show direct variation? 2. The surface area of a cube varies directly as the square of its edge. If each

asked by Jean Marie on November 26, 2013
75. ## Algebra

Suppose that Y varies directly with X, and Y=16 when X=10. (a) Write a direct equation that relates X and Y Equation: (b) Find Y when X=15 Y=

asked by Anonymous on March 11, 2016
76. ## Math

What kind of equation is 15x=3y linear equation. Inverse variation. Direct variation or joint variation?

asked by R on October 3, 2018
77. ## Math

-8y = 2x -7 +9y +7= 2x Determine whether each equation represents a direct variation. If it does, find the constant of variation.

asked by Mike on November 28, 2016
78. ## Algebra 2

Find the A) Constant of Variation, B) the Equation of the Variation, and the C) the Solution Y varies directly with x. If y = -4 when x = 2, find y when x = 6.

asked by Nate on February 15, 2018
79. ## Algebra

A student earns \$0.65 for each mistake she finds in a text. Sketch the equation of direct variation. An equation of direct variation is of the form M = k X where k us a constant. In your case M might be total money earned and X is the number of students.

asked by Joy on July 29, 2007
80. ## Help MATH

1. does the equation represent a direct variation? if ao find the constant of variation 5x=-3y Any help???

asked by DirectHelp on February 16, 2017
81. ## Math

Does the equation represent a direct variation? If so, find the constant of variation. 5x = -3y A. yes; k = 5/3 B. yes; k = -5/3 C. yes; k = 3/5 D. no

asked by Martin1162 on May 17, 2016
82. ## Math

Does the equation represent a direct variation? If so, find the constant of variation. 2x - 4y = 0 A. yes; k = -4 B. no C. yes; k = 1/2 D. yes; k = -1/2

asked by Martin1162 on May 17, 2016
83. ## algebra

Does the equation 7x-4y=0 represent a direct variation? If so, find the constant of variation. A) yes; k= 7/4 B) yes, k=-4 C) No ( i think c) D) yes; k=-7/4

asked by help on December 17, 2018
84. ## Algebra2

Does the relation in the table represent direct variation inverse variation or neither? If it is a direct or inverse variation, write an equation to represent the relation. (x,y) (5,2) (10,1) (15,2/3) (20,1/2)

asked by Sally on October 17, 2016
85. ## Algebra 1

Is each equation a direct Variation? If it is, find the constant of variation: y=3/5x -3x+2y=0 -5x+2y=9 8x+4y=12

asked by Kirstin on April 8, 2008
86. ## algebra1

M varies directly with n; m=144 when n=8. What is the constant of variation k? I don't know what this mean. Could you help me out in solving this/ A statement such as "M varies directly with n" can be changed to the equation M=kn, where k is a constant.

asked by cheryl on March 29, 2007
87. ## algebra

find the variation constant and an equation of variation where y varies directly as x and y=35 when x=5 the variation constant is k=

asked by karon on December 13, 2011
88. ## math

The distance d when a spring is stretched by a hanging object varies directly as the weight w of the object. If the distance is 34 cm when the weight is 3 kg, what is the distance when the weight is 9 kg? 22. Find the variation constant and an equation of

asked by algebra on May 16, 2011
89. ## Math- steve or ms. sue

does the data in the table represent a direct variation or an inverse variation? x 2 4 8 12 y 4 2 1 2/3 Choices: inverse variation; xy = 8 direct variation; y = 8x inverse variation;y/x = 8 *direct variation; y = 8/x Thank You.

asked by James on April 17, 2013
90. ## Algebra 1

I need some help with Direct linear variation. I had tooken a test, and one of the questions on there said " Which equation represents a direct linear variation?" The answers were A ; y = 1/x B ; y = x + 2 C ; y = x squared D ; y = 1/2x . I choose B . But

asked by Stephanie on February 15, 2012
91. ## algebra

Find the variation constant and an equation of variation where y varies directly as x and y =4 when x=1. the variation constant is K= the variation constant is y =

asked by plz hlp on June 3, 2012
92. ## Algebra 1: 8th Grade

Explain why the graph of an equation in the form y=kx always goes through the origin. Give an example of a graph that shows direct variation and one that does not show direct variation. I don't really get the question.

asked by Joy on October 8, 2008
93. ## Algebra

Need some Homework help for my son and I am not doing so great figuring out the correct answer- all explanations a greatly appreciated..... he has the following 3 part word problem. Josh mows lawns after school and earns \$25 for each lawn mowed. 1. write a

asked by Jacki on January 7, 2010
94. ## algebra

I have a few questions that I don't understand hope someone can help. 1)write an equation of th line, in point slope form, that passes through the two given points. (-17,8),(3,-2) I figured (y-8)=-2(x+17) not sure 2) the graph of g(x) is f(x) vertically

asked by kevin on September 17, 2012

**

96. ## Algebra

1. Tell whether x and y show direct variation. a. 5x - 3y = 0 b. x = y - 2 / 9 2. The variables x and y vary directly. Use the values to find the constant of proportionality and write an equation that relates x and y. a. y = 4; x = 6 b. y = 2; x = 10

asked by Dean on May 7, 2015

The force F required to stretch a string varies directly with the amount the string is stretched, S. 32 pounds is needed to stretch a string 4 inches.. A) Write a direct variation equation that relates F and S. Answer: 32=F*S+4 is what I think.. Most

asked by Allyson on November 15, 2010
98. ## Variation Problem

Could you please help me with the following question? Find the variation equation for the variation statement. 31. z varies jointly as y and the cube of x; z=96 when x=2 and y=6 (I don't understand this one. My answer choices are: a.y=2x^3y,b.y=2xy^3,

asked by Soly on October 9, 2007
99. ## Need help with variation

Could you please help me with the following question? Find the variation equation for the variation statement. 31. z varies jointly as y and the cube of x; z=96 when x=2 and y=6 (I don't understand this one. My answer choices are: a.y=2x^3y,b.y=2xy^3,

asked by Soly on October 10, 2007
100. ## Variation

Could you please help me with the following question? Find the variation equation for the variation statement. 31. z varies jointly as y and the cube of x; z=96 when x=2 and y=6 (I don't understand this one. My answer choices are: a.y=2x^3y,b.y=2xy^3,

asked by Soly on October 11, 2007