math
posted by Anonymous .
t varies directly as the square root of l. If l=81, then t=10 what is the constant proportion?
1. a is directly proportional to b. If a = 15, then b = 9
2. M varies directly as n. If n = 2/3, then m = 1/4
3. T varies as the square root of L. If L = 81, then T = 10
4. Z is proportional to the cube of d. If d = 2 then z = 5
5. f varies directly as the square of t. If t = 16, then r = 6
6. p varies directly as the sum of L and W. If L = 4 and W = 3, then P = 14
7. C is directly proportional to r. If r = 5, then c = 10(pi)
8. Y varies directly as the cube root of x. If x = 27, then y = 2z
9. J varies directly as E. If J = 594, then E = 225.
10. X varies as 1/y. If X = 25, y = 10

Wow , looks like you want us to do your assignment for you.
I will do one of them, say #8, then you do the rest
#8
Y varies directly as the cube root of x
y = k (x)^(1/3)
given : when x=27, y = 2z
2z = k(27)^(1/3)
2z = k(3)
k = 2z/3
(was this a typo? all the other cases had numbers)
Respond to this Question
Similar Questions

algebra1
M varies directly with n; m=144 when n=8. What is the constant of variation k? 
Variation
I have few questions that I need checked please and could you help me with the last question? 
VariationCheck 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 
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 
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 
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 
Math
DIRECT VARIATION 1. a is directly proportional to b.If a=15,then b=9 2. m varies directly as n.If n=2/3,then m=1/4 3. T varies as the square root of L. If L=81,then T=10 4.r varies directly as the square of t. If t=16,then r=6. 5. … 
PreCalc
1.) Suppose that y varies directly as x. If y is 5 when x is 30, the constant of variation is 150. True Or False 2.) If w varies directly as z and w = 9 when z = 6, find w when z = 3. 3.) If y varies directly as x and y = 2 when x … 
math
a variable y varies directly as the square root of a varies x,and equals 6 when x=4 find y when x=25 
PreAlgebra
If y varies directly with x, find the constant of variation with x = 4 and y = 24 If y varies inversely with x, find the constant of variation with x=5 and y = 10 If y varies directly with x, and y = 35 when x = 5 , find x when y …