math

if Y varies jointly as X and the square of Z, and if Y=24 when X=2 and Z=6, find Y when X=10 and Z=9

  1. 👍
  2. 👎
  3. 👁
  1. y = kxz^2 , where k is a constan

    given: y = 24, x=2, z=6

    24 = k(2)(36)
    k = 24/72 = 1/3

    y = (1/3)xz^2
    when x=10,z=9
    y = (1/3)(10)(81) = 10/243

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. Mathematics

    If y varies jointly as the product of x and z,and y=24;when x=3 and z=2.Find y when x=2 and z=5.

  2. 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

  3. Math

    R varies jointly as S and the square of T. If R is 32.4 when S=0.2 and T=9, find R when S=0.5 and T=5. I believe the answer is R=25, could someone check this for me?

  4. HELP!!! Math

    If a varies jointly as b and the square root of c, and a = 21 when b = 5 and c = 36, find a when b = 9 and c = 225.

  1. Algebra2

    The amount of oil used by a ship traveling at a uniform speed varies jointly with the distance and the square of the speed. The ship uses 30 barrels of oil in traveling 85 miles at 42 mi/h. How many barrels of oil are used when

  2. Algebra

    If f varies jointly as q2 and h, and f=24 when q=2 and h=2, find f when q=3 and h=5

  3. Interediate algebra

    if f varies jointly as q^2 and h, and if f = 72 when q = 3 and h = 4, find h when f = 48 and q = 2

  4. Joint variation

    A variable 'f' varies jointly as 'g' and the square of 'h' and inversely as 'j'. If f=-14 when g=5, h=8, j=20, what is 'f' when g=4, h=6 and j=9? Thanks. F=Constant*gh/j Use the data for determine the constant. Then, use the

  1. Please Help!! Math

    Wind resistance varies jointly as an object's surface area and velocity. If an mile per hour with a surface area of 25 square feet experiences a wind resistance of 225 Newtons, how fast must a car with 40 square feet of the

  2. math

    1)The area A of a triangle varies jointly as the lengths of its base b and height h. If A is 75 when b=15 and h=10,find A when b=8 and h=6 2)Determine the equation of any vertical asymtotes of the graph of f(x)=2x+3/x^2+2x-3 1)

  3. algebra

    z varies jointly with y and the square of x. If x=-2 when y=7 and z=-84,find x when z=-96 and y=2 I just need help figuring out what equation to use.

  4. mathematics

    The mass of a sheet of metal varies jointly with its area and its thickness.A sheet of metal of area 250 cm square and thickness 1 mm has a mass of 200 g. (a) Find the formula which connects the mass Mg,the area A cm square and

You can view more similar questions or ask a new question.