SOLUTION: Let r varies inversely as​ u, and r​ =5 when u​ = 3. Find r if u ​= 1/7

Algebra.Com
Question 1173930: Let r varies inversely as​ u, and r​ =5 when u​ = 3. Find r if u ​= 1/7

Answer by josgarithmetic(39617)   (Show Source): You can put this solution on YOUR website!
---------------------------------
r varies inversely as​ u
---------------------------------

That means, for a variation constant, k,
.

RELATED QUESTIONS

1. If r varies directly as s and inversely as the square of u, and r = 2 when s = 18 and... (answered by ikleyn)
r varies jointly as t and u (answered by josgarithmetic)
P varies jointly as m and u, and varies inversely as q. Given that p=4, m=3 and u=2 when... (answered by Cromlix)
U r (answered by richwmiller)
U... (answered by richwmiller)
Proof for: 1. U v (~U > ~B) 2. ~B > (R > U) 3. ~U / ~R (answered by Edwin McCravy)
If r varies inversely as t, and r=132 when t=4, find r when... (answered by Cromlix)
Find the indicated value for the given rational expression: R(u)=8u^2-1/u^2-u-6 ,... (answered by checkley77)
P varies inversely as the cube root of R and P is=1 when r=8. Find R when p=3 (answered by ewatrrr)