Solve Problems Involving Joint Variation
-$r$ varies jointly as $s$ and the square of $n$.
A) $\mathrm { r } = \mathrm { ksn } ^ { 2 }$
B) $r = \frac { k s } { n ^ { 2 } }$
C) $\mathrm { r } = \mathrm { kskn } ^ { 2 }$
D) $\mathrm { r } = \frac { \mathrm { kn } ^ { 2 } } { \mathrm {~s} }$

Question

Quizplus · Accepted Answer

Joint variation means that $r$ changes in direct proportion to $s$ and to the square of $n$, which is correctly represented by the equation $r = ksn^2$, where $k$ is the constant of proportionality.

Solve Problems Involving Joint Variation - rrr Varies Jointly As sss And the Square Of

Solve Problems Involving Joint Variation
- $r$ Varies Jointly As $s$ And the Square Of