Interediate algebra
posted by Jason .
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

f = khq^2 , where k is a constant
given: f = 72 , q=3 , h=4
72 = k(4)(9)
k = 2
so f = 2hq^2
when f=48 , and q=2
48 = 2h(4)
h = 6
Respond to this Question
Similar Questions

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 
Algebra II
1. If y varies directly as x, and y=30 when x=4, find the constant of proportionality. 2. If y varies inversely as x, and y=2 when x=10, find x when y=4. 3. If a varies jointly as b and c, and a=10, when b=12 and c=2, find a when … 
Algebra
R varies jointly as r and B^2. When r=3, and B=3 R=135. Find R when r is 1 and B=10. 
MathII ( Joint and Combined Variation)
1. R varies jointly as S and t. If R=1/6,S=1/8 and T=3, find R when S=2 and T=11. formula: R=KST 2. U varies jointly as L and H and inversely a S. If U=1.8, L=6.4, H=1.5 and S=7.2, find U when L=4.3, H=5.1 and S=2.2. formula: U=KLH/S … 
algebra
p varies jointly as u and B^2 when u = 4 and B = 5, P = 300. find P when u is 1 and Bis 11 
Math Algebra
f varies jointly as g2 and h, and f = 50 when g = 4 and h = 2. Find when g = 3 and h = 6 
Algebra
y varies jointly as X and Z. y=64 when x=4 and z=8. Find y when x=8 and z=6